2 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

What is the first step to solve the equation 1/4x - 10 = 30?

Back

Add 10 to both sides of the equation.

Front

What is the second step to solve the equation 1/4x = 40?

Back

Multiply both sides by 4 to isolate x.

Front

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

Back

Isolating a variable means to get the variable alone on one side of the equation.

Front

What is the solution to the equation -60x + 70 = -50?

Back

x = 2.

Front

How do you check if your solution to an equation is correct?

Back

Substitute the solution back into the original equation to see if both sides are equal.

Front

What is the first step to solve the equation 4x - 10 = 90?

Back

Add 10 to both sides of the equation.

Front

What is the solution to the equation 16 = 10 + 1/2x?

Back

x = 12.

Front

What does it mean when an equation has no solution?

Back

It means that there is no value for the variable that can make the equation true.

Front

What is the solution to the equation -9x - 30 = 15?

Back

x = -5.