9y+12=11y-15

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


Simplifying
9y + 12 = 11y + -15

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

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

Solving
12 + 9y = -15 + 11y

Solving for variable 'y'.

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

Add '-11y' to each side of the equation.
12 + 9y + -11y = -15 + 11y + -11y

Combine like terms: 9y + -11y = -2y
12 + -2y = -15 + 11y + -11y

Combine like terms: 11y + -11y = 0
12 + -2y = -15 + 0
12 + -2y = -15

Add '-12' to each side of the equation.
12 + -12 + -2y = -15 + -12

Combine like terms: 12 + -12 = 0
0 + -2y = -15 + -12
-2y = -15 + -12

Combine like terms: -15 + -12 = -27
-2y = -27

Divide each side by '-2'.
y = 13.5

Simplifying
y = 13.5

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