1-Step and 2-Step Equations

Solving 1-Step and

2-Step Equations

Review and Quiz

To solve equations, use inverse operations.

• Addition and Subtraction are inverses.

• Multiplication and Division are inverses.

When Solving 2-Step Equations...

• Undo the addition and subtraction 1st.

• Undo the multiplication and division last.

Multiple Choice

Solve: p - 10 = - 28

• p = - 38

• p = 14/5

• p = - 18

• p = 280

Multiple Choice

Solve: -12x = 96

• x = 1152

• x = 8

• x = 104

• x = - 8

Multiple Choice

Solve:

 $\frac{m}{7}=14$  

• m = 98

• m = 2

• m = 21

• m = 7

Multiple Choice

Solve: 11 + y = 5

• y = 16

• y = - 6

• y = 5/11

• y = 55

Multiple Choice

Solve:

 $10-3x=19$  

• x = -3

• x = 32

• x = 12

• x = -29/3

Multiple Choice

Solve:

 $\frac{n}{3}-5=-2$  

• n = -21

• n = 0

• n = 9

• n = -1

Multiple Choice

Solve: 21 = 11 - 2x

• x = - 20

• x = 12

• x = -16

• x = - 5

Multiple Choice

Solve:

 $49=-1+\frac{1}{2}w$  

• w = 24

• w = 100

• w = 25

• w = 96

Multiple Choice

Solve:

 $\frac{x-1}{3}=5$  

• x = 8/3

• x = 18

• x = 14

• x = 16

Multiple Choice

Solve: -17k - 17 = -17

• k = - 2

• k = 2

• k = 0

• k = -17