12(y-1)-4y=3(2y-2)+9y

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Solution for 12(y-1)-4y=3(2y-2)+9y equation:


Simplifying
12(y + -1) + -4y = 3(2y + -2) + 9y

Reorder the terms:
12(-1 + y) + -4y = 3(2y + -2) + 9y
(-1 * 12 + y * 12) + -4y = 3(2y + -2) + 9y
(-12 + 12y) + -4y = 3(2y + -2) + 9y

Combine like terms: 12y + -4y = 8y
-12 + 8y = 3(2y + -2) + 9y

Reorder the terms:
-12 + 8y = 3(-2 + 2y) + 9y
-12 + 8y = (-2 * 3 + 2y * 3) + 9y
-12 + 8y = (-6 + 6y) + 9y

Combine like terms: 6y + 9y = 15y
-12 + 8y = -6 + 15y

Solving
-12 + 8y = -6 + 15y

Solving for variable 'y'.

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

Add '-15y' to each side of the equation.
-12 + 8y + -15y = -6 + 15y + -15y

Combine like terms: 8y + -15y = -7y
-12 + -7y = -6 + 15y + -15y

Combine like terms: 15y + -15y = 0
-12 + -7y = -6 + 0
-12 + -7y = -6

Add '12' to each side of the equation.
-12 + 12 + -7y = -6 + 12

Combine like terms: -12 + 12 = 0
0 + -7y = -6 + 12
-7y = -6 + 12

Combine like terms: -6 + 12 = 6
-7y = 6

Divide each side by '-7'.
y = -0.8571428571

Simplifying
y = -0.8571428571

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