3y-9=13y

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Solution for 3y-9=13y equation:


Simplifying
3y + -9 = 13y

Reorder the terms:
-9 + 3y = 13y

Solving
-9 + 3y = 13y

Solving for variable 'y'.

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

Add '-13y' to each side of the equation.
-9 + 3y + -13y = 13y + -13y

Combine like terms: 3y + -13y = -10y
-9 + -10y = 13y + -13y

Combine like terms: 13y + -13y = 0
-9 + -10y = 0

Add '9' to each side of the equation.
-9 + 9 + -10y = 0 + 9

Combine like terms: -9 + 9 = 0
0 + -10y = 0 + 9
-10y = 0 + 9

Combine like terms: 0 + 9 = 9
-10y = 9

Divide each side by '-10'.
y = -0.9

Simplifying
y = -0.9

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