-4+7(1-3m)=129

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Solution for -4+7(1-3m)=129 equation:


Simplifying
-4 + 7(1 + -3m) = 129
-4 + (1 * 7 + -3m * 7) = 129
-4 + (7 + -21m) = 129

Combine like terms: -4 + 7 = 3
3 + -21m = 129

Solving
3 + -21m = 129

Solving for variable 'm'.

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

Add '-3' to each side of the equation.
3 + -3 + -21m = 129 + -3

Combine like terms: 3 + -3 = 0
0 + -21m = 129 + -3
-21m = 129 + -3

Combine like terms: 129 + -3 = 126
-21m = 126

Divide each side by '-21'.
m = -6

Simplifying
m = -6

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