6th Grade Math Textbook, Fundamentals

 &KDSWHU

2-8







two-step equation

Algebra Tiles

 x

 1

Model 3  2 x15.

Apply the Subtraction Property of Equality.

Remove 3 yellow tiles from each side.

3  3  2 x 15  3

Apply the Division Property of Equality.

Divide the tiles on each side into 2

equal groups.

2 x 12



x 6

There are 6 yellow tiles in each group.

Isabel can buy 6 ride tickets.

2 x

2

12

2

Solve Two-Step Equations

Objective To model solving two-step algebraic equations with integers

• To solve two-step algebraic equations using the properties of equality

Isabel has $15 to spend at the amusement park.

Admission is $3 and ride tickets are $2 each.

How many ride tickets can Isabel buy?

To find how many ride tickets, write and solve a

two-step equation.

A is an equation that involves

two operations.

Let xthe number of ride tickets.

admission fee plus cost of ride tickets is equal to total cost

$3  $2x  $15

You can use algebra tiles to model and solve two-step equations.

two-step equation