-m-(7+m)=4

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


Simplifying
-1m + -1(7 + m) = 4
-1m + (7 * -1 + m * -1) = 4
-1m + (-7 + -1m) = 4

Reorder the terms:
-7 + -1m + -1m = 4

Combine like terms: -1m + -1m = -2m
-7 + -2m = 4

Solving
-7 + -2m = 4

Solving for variable 'm'.

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

Add '7' to each side of the equation.
-7 + 7 + -2m = 4 + 7

Combine like terms: -7 + 7 = 0
0 + -2m = 4 + 7
-2m = 4 + 7

Combine like terms: 4 + 7 = 11
-2m = 11

Divide each side by '-2'.
m = -5.5

Simplifying
m = -5.5

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