-40+4m=-3(-7m-7)+7

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Solution for -40+4m=-3(-7m-7)+7 equation:


Simplifying
-40 + 4m = -3(-7m + -7) + 7

Reorder the terms:
-40 + 4m = -3(-7 + -7m) + 7
-40 + 4m = (-7 * -3 + -7m * -3) + 7
-40 + 4m = (21 + 21m) + 7

Reorder the terms:
-40 + 4m = 21 + 7 + 21m

Combine like terms: 21 + 7 = 28
-40 + 4m = 28 + 21m

Solving
-40 + 4m = 28 + 21m

Solving for variable 'm'.

Move all terms containing m to the left, all other terms to the right.

Add '-21m' to each side of the equation.
-40 + 4m + -21m = 28 + 21m + -21m

Combine like terms: 4m + -21m = -17m
-40 + -17m = 28 + 21m + -21m

Combine like terms: 21m + -21m = 0
-40 + -17m = 28 + 0
-40 + -17m = 28

Add '40' to each side of the equation.
-40 + 40 + -17m = 28 + 40

Combine like terms: -40 + 40 = 0
0 + -17m = 28 + 40
-17m = 28 + 40

Combine like terms: 28 + 40 = 68
-17m = 68

Divide each side by '-17'.
m = -4

Simplifying
m = -4

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