i》2(×-2)+3(4×-1)=0
ii》13(y-4)-3(y-9)-5(y+4)=0
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Answer:
(i)
2x-4+12x-3=0
14x-7=0
x=7/14
x=1/2
(ii)
13y-52-3y-27-5y-20=0
5y-99=0
y=99/5
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