3y+5-4y+4=2-y+7

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Solution for 3y+5-4y+4=2-y+7 equation: 


Simplifying
3y + 5 + -4y + 4 = 2 + -1y + 7

Reorder the terms:
5 + 4 + 3y + -4y = 2 + -1y + 7

Combine like terms: 5 + 4 = 9
9 + 3y + -4y = 2 + -1y + 7

Combine like terms: 3y + -4y = -1y
9 + -1y = 2 + -1y + 7

Reorder the terms:
9 + -1y = 2 + 7 + -1y

Combine like terms: 2 + 7 = 9
9 + -1y = 9 + -1y

Add '-9' to each side of the equation.
9 + -9 + -1y = 9 + -9 + -1y

Combine like terms: 9 + -9 = 0
0 + -1y = 9 + -9 + -1y
-1y = 9 + -9 + -1y

Combine like terms: 9 + -9 = 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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