Linear equations

Revision

4 kinds

82 x Easy

4 kinds

1943 x

82 x Easy

Two step

4 kinds

1943 x

82 x

4523 xx

Easy

Two step

X on bothsides

4 kinds

1943 x

82 x

4523 xx

Easy

Two step

X on bothsides

Brackets204)2(3 xx

Easy examples

153 x

Easy examples

153 xWhat is the 3 doing?

Easy examples

153 xWhat is the 3 doing?

Multiplying the x

Easy examples

153 xWhat is the 3 doing?

Multiplying the x

Easy examples

153 xWhat is the 3 doing?

Multiplying the x

Do the opposite!

Easy examples

153 xWhat is the 3 doing?

Multiplying the x

Do the opposite!

Divide by 3

Easy examples

153 xWhat is the 3 doing?

5x

Multiplying the x

Do the opposite!

Divide by 3

Easy examples

Easy examples

136x

Easy examples

136xWhat is the 6 doing?

Easy examples

136xWhat is the 6 doing?

Adding to the x

Easy examples

136xWhat is the 6 doing?

Adding to the x

Do the opposite!

Easy examples

136xWhat is the 6 doing?

Adding to the x

Do the opposite!

Subtract 6

Easy examples

136xWhat is the 6 doing?

7x

Adding to the x

Do the opposite!

Subtract 6

Easy examples

Easy examples

84

x

Easy examples

84

x What is the 4 doing?

Easy examples

84

x What is the 4 doing?

Dividing the x

Easy examples

84

x What is the 4 doing?

Dividing the x

Do the opposite!

Easy examples

84

x What is the 4 doing?

Dividing the x

Do the opposite!

Multiply by 4

Easy examples

84

x What is the 4 doing?

32x

Dividing the x

Do the opposite!

Multiply by 4

Easy examples

Your turn

162

x

72x

369 x

Your turn

72x

369 x

162

x

X=32

X=4

X=9

Two step equations

1943 x

Two step equations

1943 xUndo the +4

Two step equations

1943 xUndo the +4

Two step equations

153 x

1943 xUndo the +4

Two step equations

Undo the x3153 x

1943 xUndo the +4

5x

Two step equations

Undo the x3153 x

Two step equations

1332 x

Two step equations

1332 xUndo the -3

Two step equations

1332 xUndo the -3

Two step equations

162 x

1332 xUndo the -3

Two step equations

Undo the x2162 x

1332 xUndo the -3

8x

Two step equations

Undo the x2162 x

1053 x

Your turn

1532 x

1825 x

1053 x

Your turn

1532 x

1825 x

X = 5

X = 6

X = 4

X on both sides

X on both sides

4523 xx

X on both sides

4523 xx Take 3x off both sides

X on both sides

4523 xx

422 xTake 3x off both sides

X on both sides

4523 xx

422 xTake 3x off both sides

Undo -4

X on both sides

4523 xx

422 x

x26

Take 3x off both sides

Undo -4

X on both sides

4523 xx

422 x

x26

Take 3x off both sides

Undo -4

Undo x2

X on both sides

4523 xx

422 x

x26

Take 3x off both sides

Undo -4

x3Undo x2

X on both sides

X on both sides

xx 22163

X on both sides

xx 22163 Add 2x to both sides

X on both sides

xx 22163

2165 xAdd 2x to both sides

X on both sides

xx 22163

2165 xAdd 2x to both sides

Undo +6

X on both sides

xx 22163

2165 x

155 x

Add 2x to both sides

Undo +6

X on both sides

xx 22163

2165 x

155 x

Add 2x to both sides

Undo +6

Undo x5

X on both sides

xx 22163

2165 x

155 x

Add 2x to both sides

Undo +6

3xUndo x5

Your turn

11364 xx

xx 22325

18532 xx

3473 xx

Your turn

11364 xx

xx 22325

18532 xx

3473 xx

X = 7

X = 3

X = 5

X = 10

Brackets

Brackets

415)3(2 xx

Brackets

415)3(2 xx Multiply outbracket

Brackets

415)3(2 xx

41562 xxMultiply outbracket

Brackets

415)3(2 xx

41562 xxMultiply outbracketCollect terms

Brackets

415)3(2 xx

41562 xx4167 x

Multiply outbracketCollect terms

Brackets

415)3(2 xx

41562 xx4167 x

Multiply outbracketCollect terms

Undo +6

Brackets

415)3(2 xx

41562 xx4167 x

Multiply outbracket

357 x

Collect terms

Undo +6

Brackets

415)3(2 xx

41562 xx4167 x

Multiply outbracket

357 x

Collect terms

Undo +6

Undo x7

Brackets

415)3(2 xx

41562 xx4167 x

Multiply outbracket

357 x5x

Collect terms

Undo +6

Undo x7

Brackets

Brackets

11)72(5)43(2 xx

Brackets

11)72(5)43(2 xx

11351086 xx

Brackets

11)72(5)43(2 xx

11351086 xx

11274 x

Brackets

11)72(5)43(2 xx

11351086 xx

11274 x164 x

Brackets

11)72(5)43(2 xx

11351086 xx

11274 x164 x

4x

Your turn

0)13(2)32(4 xx

28)13(2 x

165)43(3 xx

12)23(3 x

Your turn

0)13(2)32(4 xx

28)13(2 x

165)43(3 xx

12)23(3 x

X = 5

X = 5

X = 2

X = 2

Find a GCSE textbook and complete the exercises on linear equations.

Find a GCSE textbook and complete the exercises on linear equations.

Try to complete a few of each type of equation and check the answers.