7(m-21)-6(7m-14)=7

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Solution for 7(m-21)-6(7m-14)=7 equation:


Simplifying
7(m + -21) + -6(7m + -14) = 7

Reorder the terms:
7(-21 + m) + -6(7m + -14) = 7
(-21 * 7 + m * 7) + -6(7m + -14) = 7
(-147 + 7m) + -6(7m + -14) = 7

Reorder the terms:
-147 + 7m + -6(-14 + 7m) = 7
-147 + 7m + (-14 * -6 + 7m * -6) = 7
-147 + 7m + (84 + -42m) = 7

Reorder the terms:
-147 + 84 + 7m + -42m = 7

Combine like terms: -147 + 84 = -63
-63 + 7m + -42m = 7

Combine like terms: 7m + -42m = -35m
-63 + -35m = 7

Solving
-63 + -35m = 7

Solving for variable 'm'.

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

Add '63' to each side of the equation.
-63 + 63 + -35m = 7 + 63

Combine like terms: -63 + 63 = 0
0 + -35m = 7 + 63
-35m = 7 + 63

Combine like terms: 7 + 63 = 70
-35m = 70

Divide each side by '-35'.
m = -2

Simplifying
m = -2

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