Question

8.4-(x-7.2)=8.6 уровнение. Пож)

Answer 1

8.4 - (x - 7.2) = 8.6
8.4 -x + 7.2 = 8.6
15.6 - x = 8.6
x = 15.6 - 8.6
x = 7

Answer 2

8,4-(x-7,2)=8,6

8,4-x+7,2=8,6

-x=8,6-8,4-7,2

-x=-7

x=-7:(-1)

x=7