12=3y-y+4

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


Simplifying
12 = 3y + -1y + 4

Reorder the terms:
12 = 4 + 3y + -1y

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

Solving
12 = 4 + 2y

Solving for variable 'y'.

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

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

Combine like terms: 2y + -2y = 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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