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. It typically involves addition or subtraction followed by multiplication or division.

Front

Back

x = 168

Front

What is the first step to solve the equation 15 = 2a + 7?

Back

Subtract 7 from both sides to isolate the term with the variable: 15 - 7 = 2a.

Front

Solve for a: 15 = 2a + 7

Back

a = 4

Front

What is the solution to the equation 2x - 3 = 1?

Back

x = 2

Front

Solve for c: 3c + 5 = 23

Back

c = 6

Front

What is the first step to solve the equation 4y + 1 = 13?

Back

Subtract 1 from both sides to isolate the term with the variable: 4y = 12.

Front

Solve for y: 4y + 1 = 13

Back

y = 3

Front

What does it mean to isolate a variable in an equation?

Back

Isolating a variable means to manipulate the equation so that the variable is on one side and all other terms are on the opposite side.

Front

What is the inverse operation of addition?

Back

Subtraction is the inverse operation of addition.