7(m-2)-6(m-1)=-20

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Solution for 7(m-2)-6(m-1)=-20 equation:


Simplifying
7(m + -2) + -6(m + -1) = -20

Reorder the terms:
7(-2 + m) + -6(m + -1) = -20
(-2 * 7 + m * 7) + -6(m + -1) = -20
(-14 + 7m) + -6(m + -1) = -20

Reorder the terms:
-14 + 7m + -6(-1 + m) = -20
-14 + 7m + (-1 * -6 + m * -6) = -20
-14 + 7m + (6 + -6m) = -20

Reorder the terms:
-14 + 6 + 7m + -6m = -20

Combine like terms: -14 + 6 = -8
-8 + 7m + -6m = -20

Combine like terms: 7m + -6m = 1m
-8 + 1m = -20

Solving
-8 + 1m = -20

Solving for variable 'm'.

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

Add '8' to each side of the equation.
-8 + 8 + 1m = -20 + 8

Combine like terms: -8 + 8 = 0
0 + 1m = -20 + 8
1m = -20 + 8

Combine like terms: -20 + 8 = -12
1m = -12

Divide each side by '1'.
m = -12

Simplifying
m = -12

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