Alebra Equations Involving Fractions

6.3

Mr. Fong bought a horse for $50.

He sold the horse to Ms. Stewardson for $60.

He missed the horse so he bought it back from Ms. Stewardson for $70.

Ms. Stewardson wants the horse back. She’s offering to by it for $80. Should Mr.Fong sell? Will he make money or lose money?

But first…. Problem of the Day!

3 + y = 6

Review – Some Algebra Equations

k - 4 = 9

Review – Some Algebra Equations

4n = 12

Review – Some Algebra Equations

-3x = 9

Review – Some Algebra Equations

2z + 3 = 7

Review – Some Algebra Equations

Fractions!Algebra equations with fractions

A fair comes through Port Moody. You buy some tickets for rides.

You share your tickets with 2 friends so that you each have 9 tickets.

How many tickets did you have to begin with?

We’ll say t represents the number of tickets you started with. Try to create an equation.

Multiplying Fractions

My equation: t = 9 3 Brainstorm: how can we isolate t ? Remember that 3 = 1

3 If we multiply both sides by 3, we’ll get:

(3) t = (9)(3) 3

Which means t = 27. Verify the solution.

Multiplying Fractions

d = 45

Practice

k = 2 6

Practice

m = - 6 -3

Practice

w - 3= 7 2

Practice

HomeworkOne Step Equations – Take 2Math Makes Sense P. 336-337

# 3-8, #10