57=3y+9

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Solution for 57=3y+9 equation:


Simplifying
57 = 3y + 9

Reorder the terms:
57 = 9 + 3y

Solving
57 = 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.
57 + -3y = 9 + 3y + -3y

Combine like terms: 3y + -3y = 0
57 + -3y = 9 + 0
57 + -3y = 9

Add '-57' to each side of the equation.
57 + -57 + -3y = 9 + -57

Combine like terms: 57 + -57 = 0
0 + -3y = 9 + -57
-3y = 9 + -57

Combine like terms: 9 + -57 = -48
-3y = -48

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

Simplifying
y = 16

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