(x+y=4(x-2y=1fast plz – InterviewSolution

1.

(x+y=4(x-2y=1fast plz

Answer»

x+y=4

y=4-x

x-2y=1

x-2(4-x)=1

x-8+2x=1

3x=1+8

x=3

y=1

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