please solve this question gice when you can solve this question I can mark you as a brain list answer.
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Step-by-step explanation:
Q no.2(a) -23x+7y.....(1)
20x-3y.......(2)
multiply eq 2 by 7 &eq 1 by 3
-69x+21y....(3)
140x-21y.....(4)
then add them you will get your answer
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