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x+3y=8 ==> x1
2x-y=2 ==> x3
x+3y=8
6x-3y=6
7x=14
x=2
y=2
itu yang diakar x saja atau akar x+y ?? bisa pake kalkulator.
2x-y=2 -> x1 2x-y = 2
4y = 14 -> y= 7
2
x+3.7/2=8 -> x= -5/2
√-5/2+7/2 = √1 = 1