Question

₩
what is the answer to this MATH Problem -4 (z-12)=42?

Answer 1

-4(z-12)=42 distribute the -4
-4z+48=42 subtract 48 from both sides
-48 -48
-4z=-6 Divide both sides by -4
z=3/2

Answer 2

-4 (z-12) = 42 equals z =
`(3)/(2)` or 1.5

First, divide both sides by -4. Your problem should look like: z - 12 =
`(42)/(-4)`.
Second, simplify
`(42)/(-4)` to
`(42)/(4)`. Your problem should look like: z - 12 =
`- (42)/(4)`.
Third, simplify
`(42)/(4)` to
`(21)/(2)`. Your problem should look like: z - 12 = -
`(21)/(2)`.
Fourth, add 12 to both sides. Your problem should look like: z = -
`(21)/(2)` + 12.
Fifth, simplify
`- (21)/(2)` + 12 to
`(3)/(2)`. Your problem should look like: z =
`(3)/(2)` which is the answer.

Answer as a fraction:
`(3)/(2)`
Answer as a decimal: 1.5