9y-11=8y-20

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Solution for 9y-11=8y-20 equation:


Simplifying
9y + -11 = 8y + -20

Reorder the terms:
-11 + 9y = 8y + -20

Reorder the terms:
-11 + 9y = -20 + 8y

Solving
-11 + 9y = -20 + 8y

Solving for variable 'y'.

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

Add '-8y' to each side of the equation.
-11 + 9y + -8y = -20 + 8y + -8y

Combine like terms: 9y + -8y = 1y
-11 + 1y = -20 + 8y + -8y

Combine like terms: 8y + -8y = 0
-11 + 1y = -20 + 0
-11 + 1y = -20

Add '11' to each side of the equation.
-11 + 11 + 1y = -20 + 11

Combine like terms: -11 + 11 = 0
0 + 1y = -20 + 11
1y = -20 + 11

Combine like terms: -20 + 11 = -9
1y = -9

Divide each side by '1'.
y = -9

Simplifying
y = -9

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