2y-1=8

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Solution for 2y-1=8 equation: 


Simplifying
2y + -1 = 8

Reorder the terms:
-1 + 2y = 8

Solving
-1 + 2y = 8

Solving for variable 'y'.

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

Add '1' to each side of the equation.
-1 + 1 + 2y = 8 + 1

Combine like terms: -1 + 1 = 0
0 + 2y = 8 + 1
2y = 8 + 1

Combine like terms: 8 + 1 = 9
2y = 9

Divide each side by '2'.
y = 4.5

Simplifying
y = 4.5

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