7(3-3m)-(8m-4)=54

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Solution for 7(3-3m)-(8m-4)=54 equation:


Simplifying
7(3 + -3m) + -1(8m + -4) = 54
(3 * 7 + -3m * 7) + -1(8m + -4) = 54
(21 + -21m) + -1(8m + -4) = 54

Reorder the terms:
21 + -21m + -1(-4 + 8m) = 54
21 + -21m + (-4 * -1 + 8m * -1) = 54
21 + -21m + (4 + -8m) = 54

Reorder the terms:
21 + 4 + -21m + -8m = 54

Combine like terms: 21 + 4 = 25
25 + -21m + -8m = 54

Combine like terms: -21m + -8m = -29m
25 + -29m = 54

Solving
25 + -29m = 54

Solving for variable 'm'.

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

Add '-25' to each side of the equation.
25 + -25 + -29m = 54 + -25

Combine like terms: 25 + -25 = 0
0 + -29m = 54 + -25
-29m = 54 + -25

Combine like terms: 54 + -25 = 29
-29m = 29

Divide each side by '-29'.
m = -1

Simplifying
m = -1

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