7=4m-21

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Solution for 7=4m-21 equation:


Simplifying
7 = 4m + -21

Reorder the terms:
7 = -21 + 4m

Solving
7 = -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.
7 + -4m = -21 + 4m + -4m

Combine like terms: 4m + -4m = 0
7 + -4m = -21 + 0
7 + -4m = -21

Add '-7' to each side of the equation.
7 + -7 + -4m = -21 + -7

Combine like terms: 7 + -7 = 0
0 + -4m = -21 + -7
-4m = -21 + -7

Combine like terms: -21 + -7 = -28
-4m = -28

Divide each side by '-4'.
m = 7

Simplifying
m = 7

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