3y+9+y=13-8y

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Solution for 3y+9+y=13-8y equation:


Simplifying
3y + 9 + y = 13 + -8y

Reorder the terms:
9 + 3y + y = 13 + -8y

Combine like terms: 3y + y = 4y
9 + 4y = 13 + -8y

Solving
9 + 4y = 13 + -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.
9 + 4y + 8y = 13 + -8y + 8y

Combine like terms: 4y + 8y = 12y
9 + 12y = 13 + -8y + 8y

Combine like terms: -8y + 8y = 0
9 + 12y = 13 + 0
9 + 12y = 13

Add '-9' to each side of the equation.
9 + -9 + 12y = 13 + -9

Combine like terms: 9 + -9 = 0
0 + 12y = 13 + -9
12y = 13 + -9

Combine like terms: 13 + -9 = 4
12y = 4

Divide each side by '12'.
y = 0.3333333333

Simplifying
y = 0.3333333333

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