Adding and Subtracting
7
-15 x 3
-45
x + 7 = 14
Subtract 7 from both sides of the equal sign.
4x - 7 = 13
Add 7 to both sides of the equal sign
Divide by 4 on both sides of the equal sign
5 + x = 20
x = 15
- 23 + -16
-39
4 x -6
-24
x - 16 = 15
Subtract 16 from both sides of the equal sign.
5 + 6x = 35
Subtract 5 on both sides of the equal sign
Divide by 6 on both sides of the equal sign
a - 8 = 8
a = 16
-12 - 10
-22
-24
5x = 25
Divide by 5 on both sides of the equal sign.
x/8 + 7 = 8
Subtract 7 on both sides of the equal sign
Multiply 8 on both sides of the equal sign
7y = 42
y = 6
17 - (-5)
22
-64 / 8
-8
x/10=60
Divide by 10 on both sides of the equal sign.
-8 + 6x = 12
Add 8 to both sides of the equal sign
Divide by 6 on both sides of the equal sign
5x + 9 =19
x = 10
8 - 17
-9
-50 / -5
10
Double Jeopardy!
1/5x = 2
Multiply by 5 on both sides of the equal sign.
-9 + x/5 = 11
Add 9 to both sides of the equal sign
Multiply by 5 on both sides of the equal sign
x/6 + 8 = 26
x = 108