9+-0.5y+y=18

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Solution for 9+-0.5y+y=18 equation: 


Simplifying
9 + -0.5y + y = 18

Combine like terms: -0.5y + y = 0.5y
9 + 0.5y = 18

Solving
9 + 0.5y = 18

Solving for variable 'y'.

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

Add '-9' to each side of the equation.
9 + -9 + 0.5y = 18 + -9

Combine like terms: 9 + -9 = 0
0 + 0.5y = 18 + -9
0.5y = 18 + -9

Combine like terms: 18 + -9 = 9
0.5y = 9

Divide each side by '0.5'.
y = 18

Simplifying
y = 18

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