Variables on Both Sides

Front

What is a variable in an equation?

Back

A symbol used to represent an unknown value in mathematical expressions or equations.

Tags

CCSS.6.EE.A.2B

Front

What does it mean to solve an equation with variables on both sides?

Back

It means to find the value of the variable that makes both sides of the equation equal.

Front

How do you isolate a variable in an equation?

Back

By performing inverse operations to both sides of the equation until the variable is alone on one side.

Tags

CCSS.7.EE.B.4A

Front

What is the first step in solving the equation -38 + 6x = 52 + 3x?

Back

Combine like terms by moving all terms involving x to one side and constant terms to the other.

Front

What is the solution to the equation -35 - 10x = 73 - x?

Back

x = -12.

Front

What does it mean if an equation has no solution?

Back

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

Tags

CCSS.8.EE.C.7A

Front

What is the solution to the equation 3x - 4 = 2x - 4?

Back

x = 0.

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.

Tags

CCSS.6.EE.B.5

Front

What is the solution to the equation -x - 163 = 12x + 84?

Back

x = 19.

Front

What is the solution to the equation -x - 29 = 15 - 3x?

Back

x = 22.