y-13-4=-20

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Solution for y-13-4=-20 equation: 


Simplifying
y + -13 + -4 = -20

Reorder the terms:
-13 + -4 + y = -20

Combine like terms: -13 + -4 = -17
-17 + y = -20

Solving
-17 + y = -20

Solving for variable 'y'.

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

Add '17' to each side of the equation.
-17 + 17 + y = -20 + 17

Combine like terms: -17 + 17 = 0
0 + y = -20 + 17
y = -20 + 17

Combine like terms: -20 + 17 = -3
y = -3

Simplifying
y = -3

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