Question

Решить уравнение 83-(1,6x-1,2):4,5=3,9

Answer 1

83-(1,6x-1,2):4,5=3,9
(1,6x-1,2):4,5=83-3,9
(1,6x-1,2):4,5=79,1
1,6х-1,2=79,1х4,5
1,6х-1,2=355,95
1,6х=355,95+1,2
1,6х=357,15
х=357,15:1,6
х=223,21875

Answer 2

83-(1,6x-1.2)/4.5=3.9
83-(1.6x-1.2)=17.55
83-1.6x+1.2=17.55
-1.6x+1.2=-65.45
-1.6x=-66.65
x=41.65625