To solve for two unknown variables (x and y) you need two independent equations, one is not enough.
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Divide each side of the equation by 10 .
The equation has no solution. Since if you combine like terms, you get 0=-10 which isn't true, there are no solutions to the equation.
the answer is-10 = 12 +xx= -10-12x=-22this is the answerx= -22
x=10 y=4
In order to solve for X, or find out what X equals, you need to get the X alone on one side of the equation. In this case, first you subtract the Y so that the equation becomes 5x=10-y. Then you divide both sides by 5. Now the equation is X=(10-y)/5 (or X equals the quantity of 10-y over 5).