ym-21=28

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Solution for ym-21=28 equation: 


Simplifying
ym + -21 = 28

Reorder the terms:
-21 + my = 28

Solving
-21 + my = 28

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 + my = 28 + 21

Combine like terms: -21 + 21 = 0
0 + my = 28 + 21
my = 28 + 21

Combine like terms: 28 + 21 = 49
my = 49

Divide each side by 'y'.
m = 49y-1

Simplifying
m = 49y-1

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