Answer:
z = -2(m + 3)
Explanation:
Given :
Divide throughout by 3 :
- 1/3 x (3z + 6(m - 5)) = -48 x 1/3
- z + 2(m - 5) = -16
Subtract 2(m - 5) on each side :
- z + 2(m - 5) - 2(m - 5) = -16 - 2(m - 5)
- z = -16 - 2(m - 5)
Simplify the RHS :
- z = -16 - 2m + 10
- z = -2m - 6
- z = -2(m + 3)