2y+y-18=90

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Solution for 2y+y-18=90 equation:


Simplifying
2y + y + -18 = 90

Reorder the terms:
-18 + 2y + y = 90

Combine like terms: 2y + y = 3y
-18 + 3y = 90

Solving
-18 + 3y = 90

Solving for variable 'y'.

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

Add '18' to each side of the equation.
-18 + 18 + 3y = 90 + 18

Combine like terms: -18 + 18 = 0
0 + 3y = 90 + 18
3y = 90 + 18

Combine like terms: 90 + 18 = 108
3y = 108

Divide each side by '3'.
y = 36

Simplifying
y = 36

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