7m+7(-4+2m)=140

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Solution for 7m+7(-4+2m)=140 equation:


Simplifying
7m + 7(-4 + 2m) = 140
7m + (-4 * 7 + 2m * 7) = 140
7m + (-28 + 14m) = 140

Reorder the terms:
-28 + 7m + 14m = 140

Combine like terms: 7m + 14m = 21m
-28 + 21m = 140

Solving
-28 + 21m = 140

Solving for variable 'm'.

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

Add '28' to each side of the equation.
-28 + 28 + 21m = 140 + 28

Combine like terms: -28 + 28 = 0
0 + 21m = 140 + 28
21m = 140 + 28

Combine like terms: 140 + 28 = 168
21m = 168

Divide each side by '21'.
m = 8

Simplifying
m = 8

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