12+xy+zy=9

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Solution for 12+xy+zy=9 equation:


Simplifying
12 + xy + zy = 9

Solving
12 + xy + yz = 9

Solving for variable 'x'.

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

Add '-12' to each side of the equation.
12 + xy + -12 + yz = 9 + -12

Reorder the terms:
12 + -12 + xy + yz = 9 + -12

Combine like terms: 12 + -12 = 0
0 + xy + yz = 9 + -12
xy + yz = 9 + -12

Combine like terms: 9 + -12 = -3
xy + yz = -3

Add '-1yz' to each side of the equation.
xy + yz + -1yz = -3 + -1yz

Combine like terms: yz + -1yz = 0
xy + 0 = -3 + -1yz
xy = -3 + -1yz

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

Simplifying
x = -3y-1 + -1z

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