-9y-13=2y+20

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Solution for -9y-13=2y+20 equation:


Simplifying
-9y + -13 = 2y + 20

Reorder the terms:
-13 + -9y = 2y + 20

Reorder the terms:
-13 + -9y = 20 + 2y

Solving
-13 + -9y = 20 + 2y

Solving for variable 'y'.

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

Add '-2y' to each side of the equation.
-13 + -9y + -2y = 20 + 2y + -2y

Combine like terms: -9y + -2y = -11y
-13 + -11y = 20 + 2y + -2y

Combine like terms: 2y + -2y = 0
-13 + -11y = 20 + 0
-13 + -11y = 20

Add '13' to each side of the equation.
-13 + 13 + -11y = 20 + 13

Combine like terms: -13 + 13 = 0
0 + -11y = 20 + 13
-11y = 20 + 13

Combine like terms: 20 + 13 = 33
-11y = 33

Divide each side by '-11'.
y = -3

Simplifying
y = -3

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