y+(2y-9)-(y+18)=35

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Solution for y+(2y-9)-(y+18)=35 equation: 


Simplifying
y + (2y + -9) + -1(y + 18) = 35

Reorder the terms:
y + (-9 + 2y) + -1(y + 18) = 35

Remove parenthesis around (-9 + 2y)
y + -9 + 2y + -1(y + 18) = 35

Reorder the terms:
y + -9 + 2y + -1(18 + y) = 35
y + -9 + 2y + (18 * -1 + y * -1) = 35
y + -9 + 2y + (-18 + -1y) = 35

Reorder the terms:
-9 + -18 + y + 2y + -1y = 35

Combine like terms: -9 + -18 = -27
-27 + y + 2y + -1y = 35

Combine like terms: y + 2y = 3y
-27 + 3y + -1y = 35

Combine like terms: 3y + -1y = 2y
-27 + 2y = 35

Solving
-27 + 2y = 35

Solving for variable 'y'.

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

Add '27' to each side of the equation.
-27 + 27 + 2y = 35 + 27

Combine like terms: -27 + 27 = 0
0 + 2y = 35 + 27
2y = 35 + 27

Combine like terms: 35 + 27 = 62
2y = 62

Divide each side by '2'.
y = 31

Simplifying
y = 31

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