20=7+m

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Solution for 20=7+m equation:


Simplifying
20 = 7 + m

Solving
20 = 7 + m

Solving for variable 'm'.

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

Add '-1m' to each side of the equation.
20 + -1m = 7 + m + -1m

Combine like terms: m + -1m = 0
20 + -1m = 7 + 0
20 + -1m = 7

Add '-20' to each side of the equation.
20 + -20 + -1m = 7 + -20

Combine like terms: 20 + -20 = 0
0 + -1m = 7 + -20
-1m = 7 + -20

Combine like terms: 7 + -20 = -13
-1m = -13

Divide each side by '-1'.
m = 13

Simplifying
m = 13

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