3x+ay=7

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Solution for 3x+ay=7 equation: 


Simplifying
3x + ay = 7

Reorder the terms:
ay + 3x = 7

Solving
ay + 3x = 7

Solving for variable 'a'.

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

Add '-3x' to each side of the equation.
ay + 3x + -3x = 7 + -3x

Combine like terms: 3x + -3x = 0
ay + 0 = 7 + -3x
ay = 7 + -3x

Divide each side by 'y'.
a = 7y-1 + -3xy-1

Simplifying
a = 7y-1 + -3xy-1

Reorder the terms:
a = -3xy-1 + 7y-1

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