3(9-y)=5(y-9)

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Solution for 3(9-y)=5(y-9) equation:


Simplifying
3(9 + -1y) = 5(y + -9)
(9 * 3 + -1y * 3) = 5(y + -9)
(27 + -3y) = 5(y + -9)

Reorder the terms:
27 + -3y = 5(-9 + y)
27 + -3y = (-9 * 5 + y * 5)
27 + -3y = (-45 + 5y)

Solving
27 + -3y = -45 + 5y

Solving for variable 'y'.

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

Add '-5y' to each side of the equation.
27 + -3y + -5y = -45 + 5y + -5y

Combine like terms: -3y + -5y = -8y
27 + -8y = -45 + 5y + -5y

Combine like terms: 5y + -5y = 0
27 + -8y = -45 + 0
27 + -8y = -45

Add '-27' to each side of the equation.
27 + -27 + -8y = -45 + -27

Combine like terms: 27 + -27 = 0
0 + -8y = -45 + -27
-8y = -45 + -27

Combine like terms: -45 + -27 = -72
-8y = -72

Divide each side by '-8'.
y = 9

Simplifying
y = 9

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