y-x=3x+4

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


Simplifying
y + -1x = 3x + 4

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

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

Solving
-1x + y = 4 + 3x

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

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

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

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

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

Divide each side by '-4'.
x = -1 + 0.25y

Simplifying
x = -1 + 0.25y

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