-21-4m=7(-7m-3)

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Solution for -21-4m=7(-7m-3) equation:


Simplifying
-21 + -4m = 7(-7m + -3)

Reorder the terms:
-21 + -4m = 7(-3 + -7m)
-21 + -4m = (-3 * 7 + -7m * 7)
-21 + -4m = (-21 + -49m)

Add '21' to each side of the equation.
-21 + 21 + -4m = -21 + 21 + -49m

Combine like terms: -21 + 21 = 0
0 + -4m = -21 + 21 + -49m
-4m = -21 + 21 + -49m

Combine like terms: -21 + 21 = 0
-4m = 0 + -49m
-4m = -49m

Solving
-4m = -49m

Solving for variable 'm'.

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

Add '49m' to each side of the equation.
-4m + 49m = -49m + 49m

Combine like terms: -4m + 49m = 45m
45m = -49m + 49m

Combine like terms: -49m + 49m = 0
45m = 0

Divide each side by '45'.
m = 0

Simplifying
m = 0

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