Question

What is the solution to the equation 15+x = –7?
a. –8
b. 22
c. 8
d. –22

Answer 1

`15+x=-7`

`x=-7-15`

`x=-22`

`Answer:-22`

Answer 2

15 + x = -7

First, subtract 15 from both sides. / Your problem should look like:
`x = -7 - 15`
Second, subtract -7 - 15 to get -22. / Your problem should look like:
`x = -22`

Answer: x = -22 (D)