Variables on Both Sides

Front

What is a variable in an equation?

Back

A symbol, often a letter, that represents an unknown value in an equation.

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

Solve: -3x + 20 = 2x - 40

Back

x = 12

Front

What is the first step in solving an equation with variables on both sides?

Back

Combine like terms by moving all variable terms to one side of the equation.

Front

Solve: 3x + 16 = 7x + 64

Back

x = -12

Front

What is the purpose of isolating the variable in an equation?

Back

To find the value of the variable that satisfies the equation.

Tags

CCSS.6.EE.B.7

Front

Solve: -2x + 18 = 2x + 40

Back

x = -5.5

Front

What does it mean to combine like terms?

Back

To simplify an expression by adding or subtracting terms that have the same variable raised to the same power.

Tags

CCSS.7.EE.A.1

Front

Solve: 7p - 5 = 6p + 8

Back

p = 13

Front

What is the importance of checking your solution in an equation?

Back

To verify that the solution satisfies the original equation.

Tags

CCSS.8.EE.C.7B