7(3m-4)=20+5m

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Solution for 7(3m-4)=20+5m equation:


Simplifying
7(3m + -4) = 20 + 5m

Reorder the terms:
7(-4 + 3m) = 20 + 5m
(-4 * 7 + 3m * 7) = 20 + 5m
(-28 + 21m) = 20 + 5m

Solving
-28 + 21m = 20 + 5m

Solving for variable 'm'.

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

Add '-5m' to each side of the equation.
-28 + 21m + -5m = 20 + 5m + -5m

Combine like terms: 21m + -5m = 16m
-28 + 16m = 20 + 5m + -5m

Combine like terms: 5m + -5m = 0
-28 + 16m = 20 + 0
-28 + 16m = 20

Add '28' to each side of the equation.
-28 + 28 + 16m = 20 + 28

Combine like terms: -28 + 28 = 0
0 + 16m = 20 + 28
16m = 20 + 28

Combine like terms: 20 + 28 = 48
16m = 48

Divide each side by '16'.
m = 3

Simplifying
m = 3

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