31=3xy-4

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Solution for 31=3xy-4 equation:


Simplifying
31 = 3xy + -4

Reorder the terms:
31 = -4 + 3xy

Solving
31 = -4 + 3xy

Solving for variable 'x'.

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

Add '-3xy' to each side of the equation.
31 + -3xy = -4 + 3xy + -3xy

Combine like terms: 3xy + -3xy = 0
31 + -3xy = -4 + 0
31 + -3xy = -4

Add '-31' to each side of the equation.
31 + -31 + -3xy = -4 + -31

Combine like terms: 31 + -31 = 0
0 + -3xy = -4 + -31
-3xy = -4 + -31

Combine like terms: -4 + -31 = -35
-3xy = -35

Divide each side by '-3y'.
x = 11.66666667y-1

Simplifying
x = 11.66666667y-1

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