15=-5-y

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Solution for 15=-5-y equation:


Simplifying
15 = -5 + -1y

Solving
15 = -5 + -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 = -5 + -1y + y

Combine like terms: -1y + y = 0
15 + y = -5 + 0
15 + y = -5

Add '-15' to each side of the equation.
15 + -15 + y = -5 + -15

Combine like terms: 15 + -15 = 0
0 + y = -5 + -15
y = -5 + -15

Combine like terms: -5 + -15 = -20
y = -20

Simplifying
y = -20

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