raven681
18.09.2019 •
Mathematics
Evaluate the expression 3(2-1)+2+ -- 7 for x= 3
step 1: what is the first step for evaluating this expression?
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Ответ:
-2
Step-by-step explanation:
3(2-1)+2+--7
3(1)+2+--7
3+2+--7
5+--7
-2
Ответ:
=55*0.72
=39.6