2×(7х+5)=8900 решите уравнение
2 (7х+5)=8900 14х+10=8900 14х=8900-10 х=8.890÷14 х=635
2*(7x+5)=8900 14x+10=8900 14x=8900-10 14x=8890 x=8890/14 x=635