12.4=15-xy

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Solution for 12.4=15-xy equation:


Simplifying
12.4 = 15 + -1xy

Solving
12.4 = 15 + -1xy

Solving for variable 'x'.

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

Add 'xy' to each side of the equation.
12.4 + xy = 15 + -1xy + xy

Combine like terms: -1xy + xy = 0
12.4 + xy = 15 + 0
12.4 + xy = 15

Add '-12.4' to each side of the equation.
12.4 + -12.4 + xy = 15 + -12.4

Combine like terms: 12.4 + -12.4 = 0.0
0.0 + xy = 15 + -12.4
xy = 15 + -12.4

Combine like terms: 15 + -12.4 = 2.6
xy = 2.6

Divide each side by 'y'.
x = 2.6y-1

Simplifying
x = 2.6y-1

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