What is the x-coordinate of the solution for the system of equations?

{y−x=9
{10+2x=−2y

enter your answer in the box.
x =

You have 12 balloons to blow up for your birthday party. you blow up 1/3, and your friend blows up 5 of them. what fraction of the baloons still need blowing up

Jonathan can throw a baseball 10 1/3 yards. his brother joey can throw a baseball 13 1/2 yards. how much father can joey throw the ball?

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