Review Solving Linear Equations and Solutions of Equations

Solve the following equation,

x + 4 = 25

• x = 29

• x = 100

• x = 5

• x = 21

Which operation will undo subtraction?

• Addition

• Subtraction

• Multiplication

• Division

The second step in solving the equation 2x - 3 = -15 is to . . .

• divide by 2 on both sides of the equation

• multiply by 2 on both sides of the equation

• subtract 3 on both sides of the equation

• add 3 on both sides of the equation

Solve the following equation,

5x = -30

• x = 6

• x = 150

• x = -6

• x = -150

In the equation 3x + 8=23, the number 3 is called the ____________.

• variable

• constant

• coefficient

• answer

In the equation 3x + 8=23, the number 8 is called the ____________.

• variable

• constant

• coefficient

• answer

In the equation 2x-5=27, which of the following is the variable?

• 2

• x

• -5

• 27

What is the solution of the equation -2x-5=17?

• x = 11

• x = 6

• x = -6

• x = -11

In solving the equation 2x-5=27, what step to do first?

• divide 2 on both sides of the equation

• add 5 on both sides of the equation

• multiply 2 on both sides of the equation

• subtract 5 on both sides of the equation

What is the value of a in the equation 3a-7=17?

• a = 6

• a = 8

• a = -8