500-400:(x+43)=495 помогите
400:(х+43)=500-495 400:(х+43)=5 х+43=400:5 х+43=80 х=80-43 х=37 500-400:(37+43)=495 495=495
500-400:(x+43)=495 400:(x+43)=500-495 400:(x+43)=5 x+43=400:5 x+43=80 x=80-43 x= 37