9y-8=2y+13

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Solution for 9y-8=2y+13 equation:


Simplifying
9y + -8 = 2y + 13

Reorder the terms:
-8 + 9y = 2y + 13

Reorder the terms:
-8 + 9y = 13 + 2y

Solving
-8 + 9y = 13 + 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.
-8 + 9y + -2y = 13 + 2y + -2y

Combine like terms: 9y + -2y = 7y
-8 + 7y = 13 + 2y + -2y

Combine like terms: 2y + -2y = 0
-8 + 7y = 13 + 0
-8 + 7y = 13

Add '8' to each side of the equation.
-8 + 8 + 7y = 13 + 8

Combine like terms: -8 + 8 = 0
0 + 7y = 13 + 8
7y = 13 + 8

Combine like terms: 13 + 8 = 21
7y = 21

Divide each side by '7'.
y = 3

Simplifying
y = 3

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