ax+y=3x-y

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


Simplifying
ax + y = 3x + -1y

Solving
ax + y = 3x + -1y

Solving for variable 'a'.

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

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

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

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

Divide each side by 'x'.
a = 3 + -2x-1y

Simplifying
a = 3 + -2x-1y

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