2y+15-y=4(y-3)

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Solution for 2y+15-y=4(y-3) equation:


Simplifying
2y + 15 + -1y = 4(y + -3)

Reorder the terms:
15 + 2y + -1y = 4(y + -3)

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

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

Solving
15 + 1y = -12 + 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.
15 + 1y + -4y = -12 + 4y + -4y

Combine like terms: 1y + -4y = -3y
15 + -3y = -12 + 4y + -4y

Combine like terms: 4y + -4y = 0
15 + -3y = -12 + 0
15 + -3y = -12

Add '-15' to each side of the equation.
15 + -15 + -3y = -12 + -15

Combine like terms: 15 + -15 = 0
0 + -3y = -12 + -15
-3y = -12 + -15

Combine like terms: -12 + -15 = -27
-3y = -27

Divide each side by '-3'.
y = 9

Simplifying
y = 9

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