y+9=18-2y

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Solution for y+9=18-2y equation:


Simplifying
y + 9 = 18 + -2y

Reorder the terms:
9 + y = 18 + -2y

Solving
9 + y = 18 + -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.
9 + y + 2y = 18 + -2y + 2y

Combine like terms: y + 2y = 3y
9 + 3y = 18 + -2y + 2y

Combine like terms: -2y + 2y = 0
9 + 3y = 18 + 0
9 + 3y = 18

Add '-9' to each side of the equation.
9 + -9 + 3y = 18 + -9

Combine like terms: 9 + -9 = 0
0 + 3y = 18 + -9
3y = 18 + -9

Combine like terms: 18 + -9 = 9
3y = 9

Divide each side by '3'.
y = 3

Simplifying
y = 3

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