15=-y+6

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Solution for 15=-y+6 equation:


Simplifying
15 = -1y + 6

Reorder the terms:
15 = 6 + -1y

Solving
15 = 6 + -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.
15 + y = 6 + -1y + y

Combine like terms: -1y + y = 0
15 + y = 6 + 0
15 + y = 6

Add '-15' to each side of the equation.
15 + -15 + y = 6 + -15

Combine like terms: 15 + -15 = 0
0 + y = 6 + -15
y = 6 + -15

Combine like terms: 6 + -15 = -9
y = -9

Simplifying
y = -9

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