0,08+0,06 x (8000-x)=580 0,14(8000-x)=580

Question

0,08+0,06 x (8000-x)=580
0,14(8000-x)=580

Answer 1

0.14*8000-0.14*х=580
1120-0.14*х=580
0.14*х=1120-580
0.14*х=540
х=540:0.14
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