Solving One Variable Addition and Subtraction

x - 12 = 2

• 24

• 10

• 20

• 14

9 + x = 18

• 10

• 8

• 9

• 2

a + 4 = 14

• -10
• 10
• -18
• 18

w + 14 = 10

• -24
• 24
• -4
• 4

Choose the correct equation for the situation.

Janna is 3 years older than Zak. If Janna 12, how old is Zak?

• j - 3 = 12

• z - 3 = 12

• z + 3 = 12

• j + 12 = 3

What equation matches this situation?
Robyn had some video games then bought 4 more.  Now she has a total of 10 games.

• v - 4 = 10
• v + 4 = 10
• 10 - 4 = v
• Answer not Given

An equation is?

• a problem that contains variables, numbers and operations but no equal sign

• a problem showing two expressions are equal

• The solution for a variable

• The value that results in a true sentence

19  + a  =  -50

• a = -950
• a =  -69
• a = -31
• a = -50/19

12 + z = -15

• -3

• 3

• -27

• 27

x - 10 = 12

• 22
• -22
• 2
• -2