4y-12=9(y-3)

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Solution for 4y-12=9(y-3) equation:


Simplifying
4y + -12 = 9(y + -3)

Reorder the terms:
-12 + 4y = 9(y + -3)

Reorder the terms:
-12 + 4y = 9(-3 + y)
-12 + 4y = (-3 * 9 + y * 9)
-12 + 4y = (-27 + 9y)

Solving
-12 + 4y = -27 + 9y

Solving for variable 'y'.

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

Add '-9y' to each side of the equation.
-12 + 4y + -9y = -27 + 9y + -9y

Combine like terms: 4y + -9y = -5y
-12 + -5y = -27 + 9y + -9y

Combine like terms: 9y + -9y = 0
-12 + -5y = -27 + 0
-12 + -5y = -27

Add '12' to each side of the equation.
-12 + 12 + -5y = -27 + 12

Combine like terms: -12 + 12 = 0
0 + -5y = -27 + 12
-5y = -27 + 12

Combine like terms: -27 + 12 = -15
-5y = -15

Divide each side by '-5'.
y = 3

Simplifying
y = 3

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