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OpenStudy (anonymous):
x+y+z=8 x-y=2 z=4
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OpenStudy (anonymous):
x + y + 4 = 8 x + y = 4 x - y =2 add these two equations 2x = 6 x = 3 y = 1
OpenStudy (anonymous):
thankyou man i need to learn how to do these lol
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