12y-20=11y-9

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Solution for 12y-20=11y-9 equation:


Simplifying
12y + -20 = 11y + -9

Reorder the terms:
-20 + 12y = 11y + -9

Reorder the terms:
-20 + 12y = -9 + 11y

Solving
-20 + 12y = -9 + 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.
-20 + 12y + -11y = -9 + 11y + -11y

Combine like terms: 12y + -11y = 1y
-20 + 1y = -9 + 11y + -11y

Combine like terms: 11y + -11y = 0
-20 + 1y = -9 + 0
-20 + 1y = -9

Add '20' to each side of the equation.
-20 + 20 + 1y = -9 + 20

Combine like terms: -20 + 20 = 0
0 + 1y = -9 + 20
1y = -9 + 20

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

Divide each side by '1'.
y = 11

Simplifying
y = 11

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