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

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

Back

To isolate a variable, perform the inverse operations in reverse order: first eliminate any addition or subtraction, then eliminate multiplication or division.

Front

Solve for x: x - 4 = 12

Back

x = 16

Front

Solve for x: 5x + 3 = 23

Back

x = 4

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

Back

x = 21

Front

What is the solution to the equation 3n + 4 = 7?

Back

n = 1

Front

What does it mean to 'solve' an equation?

Back

To solve an equation means to find the value(s) of the variable(s) that make the equation true.

Front

What is the inverse operation of addition?

Back

The inverse operation of addition is subtraction.