66=-3(-3m+4)-2(-7m+7)

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Solution for 66=-3(-3m+4)-2(-7m+7) equation:


Simplifying
66 = -3(-3m + 4) + -2(-7m + 7)

Reorder the terms:
66 = -3(4 + -3m) + -2(-7m + 7)
66 = (4 * -3 + -3m * -3) + -2(-7m + 7)
66 = (-12 + 9m) + -2(-7m + 7)

Reorder the terms:
66 = -12 + 9m + -2(7 + -7m)
66 = -12 + 9m + (7 * -2 + -7m * -2)
66 = -12 + 9m + (-14 + 14m)

Reorder the terms:
66 = -12 + -14 + 9m + 14m

Combine like terms: -12 + -14 = -26
66 = -26 + 9m + 14m

Combine like terms: 9m + 14m = 23m
66 = -26 + 23m

Solving
66 = -26 + 23m

Solving for variable 'm'.

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

Add '-23m' to each side of the equation.
66 + -23m = -26 + 23m + -23m

Combine like terms: 23m + -23m = 0
66 + -23m = -26 + 0
66 + -23m = -26

Add '-66' to each side of the equation.
66 + -66 + -23m = -26 + -66

Combine like terms: 66 + -66 = 0
0 + -23m = -26 + -66
-23m = -26 + -66

Combine like terms: -26 + -66 = -92
-23m = -92

Divide each side by '-23'.
m = 4

Simplifying
m = 4

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