20y-13=20+9y

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


Simplifying
20y + -13 = 20 + 9y

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

Solving
-13 + 20y = 20 + 9y

Solving for variable 'y'.

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

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

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

Combine like terms: 9y + -9y = 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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