21+3m=4

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Solution for 21+3m=4 equation: 


Simplifying
21 + 3m = 4

Solving
21 + 3m = 4

Solving for variable 'm'.

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

Add '-21' to each side of the equation.
21 + -21 + 3m = 4 + -21

Combine like terms: 21 + -21 = 0
0 + 3m = 4 + -21
3m = 4 + -21

Combine like terms: 4 + -21 = -17
3m = -17

Divide each side by '3'.
m = -5.666666667

Simplifying
m = -5.666666667

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