225=-y+15

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Solution for 225=-y+15 equation:


Simplifying
225 = -1y + 15

Reorder the terms:
225 = 15 + -1y

Solving
225 = 15 + -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.
225 + y = 15 + -1y + y

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

Add '-225' to each side of the equation.
225 + -225 + y = 15 + -225

Combine like terms: 225 + -225 = 0
0 + y = 15 + -225
y = 15 + -225

Combine like terms: 15 + -225 = -210
y = -210

Simplifying
y = -210

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