4m+21=-(m+4)

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


Simplifying
4m + 21 = -1(m + 4)

Reorder the terms:
21 + 4m = -1(m + 4)

Reorder the terms:
21 + 4m = -1(4 + m)
21 + 4m = (4 * -1 + m * -1)
21 + 4m = (-4 + -1m)

Solving
21 + 4m = -4 + -1m

Solving for variable 'm'.

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

Add 'm' to each side of the equation.
21 + 4m + m = -4 + -1m + m

Combine like terms: 4m + m = 5m
21 + 5m = -4 + -1m + m

Combine like terms: -1m + m = 0
21 + 5m = -4 + 0
21 + 5m = -4

Add '-21' to each side of the equation.
21 + -21 + 5m = -4 + -21

Combine like terms: 21 + -21 = 0
0 + 5m = -4 + -21
5m = -4 + -21

Combine like terms: -4 + -21 = -25
5m = -25

Divide each side by '5'.
m = -5

Simplifying
m = -5

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