Question

Решите уравнение: 4.2-(1.1x+5)+(6+x)= 0.2x-6

Answer 1

4.2-(1.1x+5)+(6+x)=0.2x-6
4.2-1.1x-5+6+x=0.2x-6
-1.1x+x-0.2x=-6-6+5-4.2
-0.3x=-11.2
x=-11.2/(-0.3)
x=112/3