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How do you solve this find the solution to the system by graphing x plus y equals 7 And 3x-y equals 5?
Haylz10
Well it kinda common sence. x=3 and y=4 because 3+4=7. and if you plug it in, 3*3=9-4=5.
it would not work to other way around because, if x=4 and y=3, 3*4=12-3=9.
*=multiply.
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