Решите пж!!!!!!!!!!!!!!!

Question

Решите пж!!!!!!!!!!!!!!!

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Answer 1

#2 (3,9*2,8+26,6):(-3,2)-2,1=4,9-2,1= -7
#4 -5/9*0,87+(-5/9)*1,83= -5/9*2,7= -1/5

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