-y+4=-17

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Solution for -y+4=-17 equation: 


Simplifying
-1y + 4 = -17

Reorder the terms:
4 + -1y = -17

Solving
4 + -1y = -17

Solving for variable 'y'.

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

Add '-4' to each side of the equation.
4 + -4 + -1y = -17 + -4

Combine like terms: 4 + -4 = 0
0 + -1y = -17 + -4
-1y = -17 + -4

Combine like terms: -17 + -4 = -21
-1y = -21

Divide each side by '-1'.
y = 21

Simplifying
y = 21

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