y+8=2y+9

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Solution for y+8=2y+9 equation:


Simplifying
y + 8 = 2y + 9

Reorder the terms:
8 + y = 2y + 9

Reorder the terms:
8 + y = 9 + 2y

Solving
8 + y = 9 + 2y

Solving for variable 'y'.

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

Add '-2y' to each side of the equation.
8 + y + -2y = 9 + 2y + -2y

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

Combine like terms: 2y + -2y = 0
8 + -1y = 9 + 0
8 + -1y = 9

Add '-8' to each side of the equation.
8 + -8 + -1y = 9 + -8

Combine like terms: 8 + -8 = 0
0 + -1y = 9 + -8
-1y = 9 + -8

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

Divide each side by '-1'.
y = -1

Simplifying
y = -1

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