4-y=-y+4

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Solution for 4-y=-y+4 equation: 


Simplifying
4 + -1y = -1y + 4

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

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

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

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

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

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

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

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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