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 a: 15 = 2a + 7

Back

a = 4

Front

Back

x = 168

Front

Solve for s: 9 = 2s + 1

Back

s = 4

Front

Back

x = 5

Front

Solve for x: -3x + 5 = -13

Back

x = 6

Front

What is the first step to solve the equation 2x + 3 = 11?

Back

Subtract 3 from both sides to isolate the term with the variable.

Front

What does it mean to 'check your solution' in an equation?

Back

To check your solution means to substitute the value back into the original equation to verify that both sides are equal.

Front

What is the inverse operation of addition?

Back

The inverse operation of addition is subtraction.