-91=7-7(m+7)

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Solution for -91=7-7(m+7) equation:


Simplifying
-91 = 7 + -7(m + 7)

Reorder the terms:
-91 = 7 + -7(7 + m)
-91 = 7 + (7 * -7 + m * -7)
-91 = 7 + (-49 + -7m)

Combine like terms: 7 + -49 = -42
-91 = -42 + -7m

Solving
-91 = -42 + -7m

Solving for variable 'm'.

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

Add '7m' to each side of the equation.
-91 + 7m = -42 + -7m + 7m

Combine like terms: -7m + 7m = 0
-91 + 7m = -42 + 0
-91 + 7m = -42

Add '91' to each side of the equation.
-91 + 91 + 7m = -42 + 91

Combine like terms: -91 + 91 = 0
0 + 7m = -42 + 91
7m = -42 + 91

Combine like terms: -42 + 91 = 49
7m = 49

Divide each side by '7'.
m = 7

Simplifying
m = 7

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