Question

Which of the following equations are equivalent to -2m - 5m - 8 = 3 + (-7) + m?

Answer 1

-7m - 8 = m - 4

-8 - 7m = -4 + m

m - 4 = -7m - 8

Explanation:

when you solve all the equations you get the same value of m which is

m= - 1/2

Answer 2

-2m - 5m = -7m
-7m - 8 = 3 -7 + m
3 - 7 = -4
-7m - 8 = m - 4
-7m - 8 + 8 = m - 4 + 8
-7m = m + 4
-7m - m = m + 4 - m
-8m = 4
-8m/-8 = 4/ -8
FINAL = m= -1/2 = -0.5