8-(-m)=4

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Solution for 8-(-m)=4 equation: 


Simplifying
8 + -1(-1m) = 4

Remove parenthesis around (-1m)
8 + -1 * -1m = 4

Multiply -1 * -1
8 + 1m = 4

Solving
8 + 1m = 4

Solving for variable 'm'.

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

Add '-8' to each side of the equation.
8 + -8 + 1m = 4 + -8

Combine like terms: 8 + -8 = 0
0 + 1m = 4 + -8
1m = 4 + -8

Combine like terms: 4 + -8 = -4
1m = -4

Divide each side by '1'.
m = -4

Simplifying
m = -4

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