121=-8m+7(1-7m)

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Solution for 121=-8m+7(1-7m) equation:


Simplifying
121 = -8m + 7(1 + -7m)
121 = -8m + (1 * 7 + -7m * 7)
121 = -8m + (7 + -49m)

Reorder the terms:
121 = 7 + -8m + -49m

Combine like terms: -8m + -49m = -57m
121 = 7 + -57m

Solving
121 = 7 + -57m

Solving for variable 'm'.

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

Add '57m' to each side of the equation.
121 + 57m = 7 + -57m + 57m

Combine like terms: -57m + 57m = 0
121 + 57m = 7 + 0
121 + 57m = 7

Add '-121' to each side of the equation.
121 + -121 + 57m = 7 + -121

Combine like terms: 121 + -121 = 0
0 + 57m = 7 + -121
57m = 7 + -121

Combine like terms: 7 + -121 = -114
57m = -114

Divide each side by '57'.
m = -2

Simplifying
m = -2

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