x+y=3x-y+4

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Solution for x+y=3x-y+4 equation: 


Simplifying
x + y = 3x + -1y + 4

Reorder the terms:
x + y = 4 + 3x + -1y

Solving
x + y = 4 + 3x + -1y

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
x + -3x + y = 4 + 3x + -3x + -1y

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

Combine like terms: 3x + -3x = 0
-2x + y = 4 + 0 + -1y
-2x + y = 4 + -1y

Add '-1y' to each side of the equation.
-2x + y + -1y = 4 + -1y + -1y

Combine like terms: y + -1y = 0
-2x + 0 = 4 + -1y + -1y
-2x = 4 + -1y + -1y

Combine like terms: -1y + -1y = -2y
-2x = 4 + -2y

Divide each side by '-2'.
x = -2 + y

Simplifying
x = -2 + y

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