Solving Variable Equations

Given:  
x  + 12  =  49
x is called the...

• letter

• number

• variable

• thingy

What is the mistake?

• should have added 9 to both sides

• should have subtracted 9 from BOTH sides

• should have subtracted 20 from both sides

Where is the mistake?

• should have added 7 to both sides

• should only have subtracted from the left side

• should have subtracted 15 from both sides

Please solve this equation

^p/₅ = 7

• p = 35

• p = 12

• p = 2

• None of these match my answer

Please solve this equation

• m = 18

• m = 2 ¹/₈

• m = 424

• None of these match my answer

Please solve this equation

23 = x + 7

• x = 16

• x = 30

• x = 161

• None of these match my answer

2) Solve this equation

t - 7 = 2

• t = 9

• t = 7

• t = 5

• None of these match my answer

Solve this equation

c - 1 = 8

• c = 9

• c = 7

• c = 8

• None of these match my answer

Please solve this equation

• m = 7

• m = 1

• m = 13

• None of these match my answer

Please solve this equation

^c/₉ = 8

• c = 1

• c = 17

• c = ⁸/₉

• None of these match my answer