Question

Плиз решите уравнение!
486:(5x+2)=18

Answer 1

486 : (5х + 2) = 18
5х + 2 = 486 : 18
5х + 2 = 27
5х = 27 - 2
5х = 25
х = 25 : 5
х = 5
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Проверка: 486 : (5 * 5 + 2) = 18
                  486 : (25 + 2) = 18
                  486 : 27 = 18
                  18 = 18  

Answer 2

$486:(5x+2)=18 \ 5x+2=486:18 \ 5x+2= 27 \ 5x=27-2 \ 5x=20 \ x=20:5 \ x=4$