-7m-8(7m+4)=-4m+21

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Solution for -7m-8(7m+4)=-4m+21 equation:


Simplifying
-7m + -8(7m + 4) = -4m + 21

Reorder the terms:
-7m + -8(4 + 7m) = -4m + 21
-7m + (4 * -8 + 7m * -8) = -4m + 21
-7m + (-32 + -56m) = -4m + 21

Reorder the terms:
-32 + -7m + -56m = -4m + 21

Combine like terms: -7m + -56m = -63m
-32 + -63m = -4m + 21

Reorder the terms:
-32 + -63m = 21 + -4m

Solving
-32 + -63m = 21 + -4m

Solving for variable 'm'.

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

Add '4m' to each side of the equation.
-32 + -63m + 4m = 21 + -4m + 4m

Combine like terms: -63m + 4m = -59m
-32 + -59m = 21 + -4m + 4m

Combine like terms: -4m + 4m = 0
-32 + -59m = 21 + 0
-32 + -59m = 21

Add '32' to each side of the equation.
-32 + 32 + -59m = 21 + 32

Combine like terms: -32 + 32 = 0
0 + -59m = 21 + 32
-59m = 21 + 32

Combine like terms: 21 + 32 = 53
-59m = 53

Divide each side by '-59'.
m = -0.8983050847

Simplifying
m = -0.8983050847

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