Regular Chapter 7 Practice Solve Add, Sub, Mult. Equations

x + 12 = 20

• x = 32

• x = -32

• x = 8

• x = -8

4 + b = 30

• -34

• 34

• -26

• 26

y - 4.6 = 12

• 16.6

• 5.8

• 7.4

• Answer not Given

17 = x + 3

• x = 20

• x = 14

• x = 13

• x = 19

Choose the correct equation for the situation.
Jane is 3 years older than Sam. If Jane 12, how old is Sam?

• j - 3 = 12

• s - 3 = 12

• s + 3 = 12

• j + 12 = 3

Your ultimate goal when solving equations is to...

• take away all the x's

• get rid of all the numbers

• get the x (variable) by itself

• move numbers and variables however you want to

x - 62 = 123
How should you show your work to isolate the variable and solve the equation?

• Add 62 to each side. 

• Subtract 62 from each side.

• Multiply each side by 62.

• Add 123 to each side.

Solve for k.  
 k - 40  =  260

• 220

• 300

• -300

• -220

Solve the equation:
x - 5.5 = 10.5

• x = 16

• x = -15

• x = 5

• x = -5

y - 33 = 147

• y = 114

• y = 177

• y = 180

• Answer not Given