91=-7(-1-4m)

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Solution for 91=-7(-1-4m) equation:


Simplifying
91 = -7(-1 + -4m)
91 = (-1 * -7 + -4m * -7)
91 = (7 + 28m)

Solving
91 = 7 + 28m

Solving for variable 'm'.

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

Add '-28m' to each side of the equation.
91 + -28m = 7 + 28m + -28m

Combine like terms: 28m + -28m = 0
91 + -28m = 7 + 0
91 + -28m = 7

Add '-91' to each side of the equation.
91 + -91 + -28m = 7 + -91

Combine like terms: 91 + -91 = 0
0 + -28m = 7 + -91
-28m = 7 + -91

Combine like terms: 7 + -91 = -84
-28m = -84

Divide each side by '-28'.
m = 3

Simplifying
m = 3

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