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Sagot :
the answer is one becuase if you add -x tot he 3x you get 4 and then divide by four and get one
Okay so first you "substitute" 3x for y in the other equation so it looks like this 3x=-x+4..... Then you solve for x by adding x to the other side so it's 4x= 4 then you divide by 4 and get x= 1...... Then you have to find y so you pull x into one equation like this y= 3*1 so y=3
So the final answer is (1,3)
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