If fifty-seven is added to four times a number, the result is -7. what is the number?

x(aka the number) = -16

This is because 4 times -16 = -64, and -64 plus 57 = -7.

Step-by-step explanation:

x = -16

Step-by-step explanation:

4x + 57 = -7

subtract 57 to both sides and then solve for x

4x+ 57 -57 = -7 + -57

4x = -64

4x/4 = -64/4

x = -16

12r - 8 - 12

you have to combine like terms. below i have bolded the like terms:

12r - 8 - 12

together it combines to:

12r - 20

hope this !