7+20=28+13m

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Solution for 7+20=28+13m equation:


Simplifying
7 + 20 = 28 + 13m

Combine like terms: 7 + 20 = 27
27 = 28 + 13m

Solving
27 = 28 + 13m

Solving for variable 'm'.

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

Add '-13m' to each side of the equation.
27 + -13m = 28 + 13m + -13m

Combine like terms: 13m + -13m = 0
27 + -13m = 28 + 0
27 + -13m = 28

Add '-27' to each side of the equation.
27 + -27 + -13m = 28 + -27

Combine like terms: 27 + -27 = 0
0 + -13m = 28 + -27
-13m = 28 + -27

Combine like terms: 28 + -27 = 1
-13m = 1

Divide each side by '-13'.
m = -0.07692307692

Simplifying
m = -0.07692307692

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