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 inverse operations in the reverse order of operations. First, eliminate any constant added or subtracted from the variable, then divide or multiply to solve for the variable.

Front

Solve the equation: 2x - 3 = 1

Back

x = 2

Front

Solve the equation: 3n + 4 = 7

Back

n = 1

Front

Solve the equation: 15 = 2a + 7

Back

a = 4

Front

Back

x = 5

Front

Solve the equation: 9 = 2s + 1

Back

s = 4

Front

What is the first step to solve the equation 2x - 3 = 1?

Back

Add 3 to both sides of the equation to eliminate the constant.

Front

What is the second step to solve the equation 2x - 3 = 1 after isolating the variable?

Back

Divide both sides by 2 to solve for x.

Front

What does it mean to check your solution in a two-step equation?

Back

Checking your solution means substituting the value back into the original equation to verify that both sides are equal.