<span> 6Х-3Х=522</span>
<span>3х=522</span>
<span>х=522:3</span>
<span>х= 174</span>
<span></span>
<span>проверка</span>
<span>6*174-3*174= 522</span>
<span>1044-522= 522</span>
<span>522 = 522</span>
6x-3x=522
3x=522
x=522/3
x=174
Ответ:
Пошаговое объяснение:7800;65990;84510;10100.Бари болинеди.