7(m+3)=45-3(12-m)

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Solution for 7(m+3)=45-3(12-m) equation:


Simplifying
7(m + 3) = 45 + -3(12 + -1m)

Reorder the terms:
7(3 + m) = 45 + -3(12 + -1m)
(3 * 7 + m * 7) = 45 + -3(12 + -1m)
(21 + 7m) = 45 + -3(12 + -1m)
21 + 7m = 45 + (12 * -3 + -1m * -3)
21 + 7m = 45 + (-36 + 3m)

Combine like terms: 45 + -36 = 9
21 + 7m = 9 + 3m

Solving
21 + 7m = 9 + 3m

Solving for variable 'm'.

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

Add '-3m' to each side of the equation.
21 + 7m + -3m = 9 + 3m + -3m

Combine like terms: 7m + -3m = 4m
21 + 4m = 9 + 3m + -3m

Combine like terms: 3m + -3m = 0
21 + 4m = 9 + 0
21 + 4m = 9

Add '-21' to each side of the equation.
21 + -21 + 4m = 9 + -21

Combine like terms: 21 + -21 = 0
0 + 4m = 9 + -21
4m = 9 + -21

Combine like terms: 9 + -21 = -12
4m = -12

Divide each side by '4'.
m = -3

Simplifying
m = -3

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