Предмет: Математика, автор: Аноним

Допоможіть будь ласка! Даю 20 балов!

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Автор ответа: evelinapetrovskaa48

1) х+5792-4153=7125
х+1639=7125
х=7125-1635
х=5486
2) 22х+13=321
22х=321-13
22х=308
х=308:22
х=14
3) 13 x - 546 = 390
13 x=390 + 546
13 x=936
х=936:13
х=72
4) 6x÷5=180
6/5х=180
х=150

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