-2y-9=5y+12

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Solution for -2y-9=5y+12 equation:


Simplifying
-2y + -9 = 5y + 12

Reorder the terms:
-9 + -2y = 5y + 12

Reorder the terms:
-9 + -2y = 12 + 5y

Solving
-9 + -2y = 12 + 5y

Solving for variable 'y'.

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

Add '-5y' to each side of the equation.
-9 + -2y + -5y = 12 + 5y + -5y

Combine like terms: -2y + -5y = -7y
-9 + -7y = 12 + 5y + -5y

Combine like terms: 5y + -5y = 0
-9 + -7y = 12 + 0
-9 + -7y = 12

Add '9' to each side of the equation.
-9 + 9 + -7y = 12 + 9

Combine like terms: -9 + 9 = 0
0 + -7y = 12 + 9
-7y = 12 + 9

Combine like terms: 12 + 9 = 21
-7y = 21

Divide each side by '-7'.
y = -3

Simplifying
y = -3

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