Question

x+1/2+y+3/4=2
x-1/3-y-3/6=1
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Answer 1

Răspuns:

x+²1/2+y+3/4=⁴2

x-²1/3-y-3/6=⁶1

x+y=(2-2-3)/4=-3/4

x-y=(1+2+3)/6=6/6=1

x+y=3/4

x-y=1

2x=3/4+⁴1

x=(3+1)/4×2=1/2

y=x-1=1/2-²1=(1-2)/2=-1/2

soluția : x=1/2

y=-1/2