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

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


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

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

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

Solving
-9 + 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.
-9 + 3y + -5y = -45 + 5y + -5y

Combine like terms: 3y + -5y = -2y
-9 + -2y = -45 + 5y + -5y

Combine like terms: 5y + -5y = 0
-9 + -2y = -45 + 0
-9 + -2y = -45

Add '9' to each side of the equation.
-9 + 9 + -2y = -45 + 9

Combine like terms: -9 + 9 = 0
0 + -2y = -45 + 9
-2y = -45 + 9

Combine like terms: -45 + 9 = -36
-2y = -36

Divide each side by '-2'.
y = 18

Simplifying
y = 18

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