Solving 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 appear in the equation.

Front

Solve for k: 2k + 12 = -4

Back

k = -8

Front

Solve for m: -5 = 3m - 14

Back

m = 3

Front

Solve for c: 4c - 6 = 2

Back

c = 2

Front

Solve for t: -4 = 2t - 2

Back

t = -1

Front

Solve for s: 9 = 2s + 1

Back

s = 4

Front

What is the first step to solve the equation 2x + 5 = 15?

Back

Subtract 5 from both sides to get 2x = 10.

Front

What is the second step to solve the equation 2x = 10?

Back

Divide both sides by 2 to get x = 5.

Front

What does it mean to perform the inverse operation?

Back

An inverse operation reverses the effect of the original operation (e.g., addition and subtraction are inverses).