y+9=10-y

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Solution for y+9=10-y equation:


Simplifying
y + 9 = 10 + -1y

Reorder the terms:
9 + y = 10 + -1y

Solving
9 + y = 10 + -1y

Solving for variable 'y'.

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

Add 'y' to each side of the equation.
9 + y + y = 10 + -1y + y

Combine like terms: y + y = 2y
9 + 2y = 10 + -1y + y

Combine like terms: -1y + y = 0
9 + 2y = 10 + 0
9 + 2y = 10

Add '-9' to each side of the equation.
9 + -9 + 2y = 10 + -9

Combine like terms: 9 + -9 = 0
0 + 2y = 10 + -9
2y = 10 + -9

Combine like terms: 10 + -9 = 1
2y = 1

Divide each side by '2'.
y = 0.5

Simplifying
y = 0.5

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