ax-by=3x

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Solution for ax-by=3x equation: 


Simplifying
ax + -1by = 3x

Solving
ax + -1by = 3x

Solving for variable 'a'.

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

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

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

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

Simplifying
a = bx-1y + 3

Reorder the terms:
a = 3 + bx-1y

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