2y+1+y-1=90

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Solution for 2y+1+y-1=90 equation: 


Simplifying
2y + 1 + y + -1 = 90

Reorder the terms:
1 + -1 + 2y + y = 90

Combine like terms: 1 + -1 = 0
0 + 2y + y = 90
2y + y = 90

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

Solving
3y = 90

Solving for variable 'y'.

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

Divide each side by '3'.
y = 30

Simplifying
y = 30

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