Question

Реши уравнение.
5( х+3)+7=3(х+12)

Answer 1

5х + 15 + 7 = 3х + 36
5х - 3х = 36 - 22
2х = 14
Х = 14 : 2
Х = 7
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Проверка
5(7 +3)+ 7 = 3(7 + 12)
5• 10 + 7 = 3 • 19
57 = 57