3y-12-y=15-(4y+8)

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Solution for 3y-12-y=15-(4y+8) equation:


Simplifying
3y + -12 + -1y = 15 + -1(4y + 8)

Reorder the terms:
-12 + 3y + -1y = 15 + -1(4y + 8)

Combine like terms: 3y + -1y = 2y
-12 + 2y = 15 + -1(4y + 8)

Reorder the terms:
-12 + 2y = 15 + -1(8 + 4y)
-12 + 2y = 15 + (8 * -1 + 4y * -1)
-12 + 2y = 15 + (-8 + -4y)

Combine like terms: 15 + -8 = 7
-12 + 2y = 7 + -4y

Solving
-12 + 2y = 7 + -4y

Solving for variable 'y'.

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

Add '4y' to each side of the equation.
-12 + 2y + 4y = 7 + -4y + 4y

Combine like terms: 2y + 4y = 6y
-12 + 6y = 7 + -4y + 4y

Combine like terms: -4y + 4y = 0
-12 + 6y = 7 + 0
-12 + 6y = 7

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

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

Combine like terms: 7 + 12 = 19
6y = 19

Divide each side by '6'.
y = 3.166666667

Simplifying
y = 3.166666667

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