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

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


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

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

Solving
21 + 7m = 45 + -1m

Solving for variable 'm'.

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

Add 'm' to each side of the equation.
21 + 7m + m = 45 + -1m + m

Combine like terms: 7m + m = 8m
21 + 8m = 45 + -1m + m

Combine like terms: -1m + m = 0
21 + 8m = 45 + 0
21 + 8m = 45

Add '-21' to each side of the equation.
21 + -21 + 8m = 45 + -21

Combine like terms: 21 + -21 = 0
0 + 8m = 45 + -21
8m = 45 + -21

Combine like terms: 45 + -21 = 24
8m = 24

Divide each side by '8'.
m = 3

Simplifying
m = 3

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