9y-13y=-21-27

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Solution for 9y-13y=-21-27 equation: 


Simplifying
9y + -13y = -21 + -27

Combine like terms: 9y + -13y = -4y
-4y = -21 + -27

Combine like terms: -21 + -27 = -48
-4y = -48

Solving
-4y = -48

Solving for variable 'y'.

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

Divide each side by '-4'.
y = 12

Simplifying
y = 12

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