One Step Equations Addition and Subtraction Rules

What is the correct step to solve for the variable?
15 = m - 5

• add 15 to both sides

• add 5 to both sides

• subtract 15 from both sides

• subtract 5 from both sides

5 - (-12)

• -7

• 7

• 17

• -17

-10+4

• -14

• 14

• -6

• 6

-9 + 9

• 18

• -18

• 0

• 81

- 2 + - 9

• -11

• 11

• -7

• 7

-2 - (-8)

• 6

• -6

• -10

• 10

− | -13 | =

• 0

• 13

• undefined

• − 13

-632 + 632 =

• 1264

• -1264

• -1

• 0

A scuba diver dove down 25 feet, then swam up 11 feet. Which equation represents this and the diver's current position?

• -25 + - 11 = -36

• -25 + 11 = -14

• -25 + 11 = -36

• -25 + 11 = 14

Which expression has the sum of 0?

• 0 - 8

• 0 + -8

• -8 - 8

• 8 + (-8)