12y-11-y+15=9y-13+4y

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Solution for 12y-11-y+15=9y-13+4y equation:


Simplifying
12y + -11 + -1y + 15 = 9y + -13 + 4y

Reorder the terms:
-11 + 15 + 12y + -1y = 9y + -13 + 4y

Combine like terms: -11 + 15 = 4
4 + 12y + -1y = 9y + -13 + 4y

Combine like terms: 12y + -1y = 11y
4 + 11y = 9y + -13 + 4y

Reorder the terms:
4 + 11y = -13 + 9y + 4y

Combine like terms: 9y + 4y = 13y
4 + 11y = -13 + 13y

Solving
4 + 11y = -13 + 13y

Solving for variable 'y'.

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

Add '-13y' to each side of the equation.
4 + 11y + -13y = -13 + 13y + -13y

Combine like terms: 11y + -13y = -2y
4 + -2y = -13 + 13y + -13y

Combine like terms: 13y + -13y = 0
4 + -2y = -13 + 0
4 + -2y = -13

Add '-4' to each side of the equation.
4 + -4 + -2y = -13 + -4

Combine like terms: 4 + -4 = 0
0 + -2y = -13 + -4
-2y = -13 + -4

Combine like terms: -13 + -4 = -17
-2y = -17

Divide each side by '-2'.
y = 8.5

Simplifying
y = 8.5

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