20-3(m-1)=-4

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Solution for 20-3(m-1)=-4 equation: 


Simplifying
20 + -3(m + -1) = -4

Reorder the terms:
20 + -3(-1 + m) = -4
20 + (-1 * -3 + m * -3) = -4
20 + (3 + -3m) = -4

Combine like terms: 20 + 3 = 23
23 + -3m = -4

Solving
23 + -3m = -4

Solving for variable 'm'.

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

Add '-23' to each side of the equation.
23 + -23 + -3m = -4 + -23

Combine like terms: 23 + -23 = 0
0 + -3m = -4 + -23
-3m = -4 + -23

Combine like terms: -4 + -23 = -27
-3m = -27

Divide each side by '-3'.
m = 9

Simplifying
m = 9

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