Question

решите пжста!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

5.4-3.1=2.3
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х=2.3
2.3/2.3+2.3/2=1+1.15=2.15
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x=4.6
2.3/4.6+4.6/2=0.5+2.3=2.8