3y-12=y-4

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Solution for 3y-12=y-4 equation:


Simplifying
3y + -12 = y + -4

Reorder the terms:
-12 + 3y = y + -4

Reorder the terms:
-12 + 3y = -4 + y

Solving
-12 + 3y = -4 + y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
-12 + 3y + -1y = -4 + y + -1y

Combine like terms: 3y + -1y = 2y
-12 + 2y = -4 + y + -1y

Combine like terms: y + -1y = 0
-12 + 2y = -4 + 0
-12 + 2y = -4

Add '12' to each side of the equation.
-12 + 12 + 2y = -4 + 12

Combine like terms: -12 + 12 = 0
0 + 2y = -4 + 12
2y = -4 + 12

Combine like terms: -4 + 12 = 8
2y = 8

Divide each side by '2'.
y = 4

Simplifying
y = 4

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