3y-21+xy-7x=

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Solution for 3y-21+xy-7x= equation:


Simplifying
3y + -21 + xy + -7x = 0

Reorder the terms:
-21 + -7x + xy + 3y = 0

Solving
-21 + -7x + xy + 3y = 0

Solving for variable 'x'.

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

Add '21' to each side of the equation.
-21 + -7x + xy + 21 + 3y = 0 + 21

Reorder the terms:
-21 + 21 + -7x + xy + 3y = 0 + 21

Combine like terms: -21 + 21 = 0
0 + -7x + xy + 3y = 0 + 21
-7x + xy + 3y = 0 + 21

Combine like terms: 0 + 21 = 21
-7x + xy + 3y = 21

Add '-3y' to each side of the equation.
-7x + xy + 3y + -3y = 21 + -3y

Combine like terms: 3y + -3y = 0
-7x + xy + 0 = 21 + -3y
-7x + xy = 21 + -3y

Reorder the terms:
-21 + -7x + xy + 3y = 21 + -3y + -21 + 3y

Reorder the terms:
-21 + -7x + xy + 3y = 21 + -21 + -3y + 3y

Combine like terms: 21 + -21 = 0
-21 + -7x + xy + 3y = 0 + -3y + 3y
-21 + -7x + xy + 3y = -3y + 3y

Combine like terms: -3y + 3y = 0
-21 + -7x + xy + 3y = 0

The solution to this equation could not be determined.

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