39=3y-9

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Solution for 39=3y-9 equation:


Simplifying
39 = 3y + -9

Reorder the terms:
39 = -9 + 3y

Solving
39 = -9 + 3y

Solving for variable 'y'.

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

Add '-3y' to each side of the equation.
39 + -3y = -9 + 3y + -3y

Combine like terms: 3y + -3y = 0
39 + -3y = -9 + 0
39 + -3y = -9

Add '-39' to each side of the equation.
39 + -39 + -3y = -9 + -39

Combine like terms: 39 + -39 = 0
0 + -3y = -9 + -39
-3y = -9 + -39

Combine like terms: -9 + -39 = -48
-3y = -48

Divide each side by '-3'.
y = 16

Simplifying
y = 16

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