Question

what are the Solutions for the
simultaneous equations.. 2x +
y =8; x-y =1​

Answer 1

X-y=1 => x=1+y

2x+y=8
2(1+y)+y=8
2+2y+y=8
3y=6
y=2

x-y=1
x-2=1
x=3

Answer 2

(X,Y) = (6,7)

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