Solve Two-Step Equations

Front

What is a two-step equation?

Back

A two-step equation is an algebraic equation that requires two operations to solve for the variable.

Front

How do you isolate a variable in a two-step equation?

Back

To isolate a variable, perform the inverse operations in the reverse order of how they are applied.

Front

Solve for x: 3x + 1 = 10

Back

x = 3

Front

Solve for r: 2r - 3.1 = 1.7

Back

r = 2.4

Front

Identify the mistake: 6z - 10 = 20, -10 -10, 6z = 10, z = 1.666...

Back

The correct solution is z = 5.

Front

Solve for z: 6z - 10 = 20

Back

z = 5

Front

Solve for x: 12(x - 20) = -48

Back

x = 16

Front

Solve for s: 8(s + 3) = 72

Back

s = 6

Front

What is the first step to solve the equation 3x + 1 = 10?

Back

Subtract 1 from both sides to get 3x = 9.

Front

What is the second step to solve the equation 3x = 9?

Back

Divide both sides by 3 to get x = 3.