3.1(2x+1.2)=0.2(x-6)

Solution for 3.1(2x+1.2)=0.2(x-6) equation:

3.1(2x+1.2)=0.2(x-6)

We simplify the equation to the form, which is simple to understand 
3.1(2x+1.2)=0.2(x-6)

Reorder the terms in parentheses
+(+6.2x+3.72)=0.2*(x-6)

Remove unnecessary parentheses
+6.2x+3.72=0.2+*(+x-6+)

Reorder the terms in parentheses
+6.2x+3.72=+( + 0.2x-1.2)

Remove unnecessary parentheses
+6.2x+3.72=0.2x-1.2

We move all terms containing x to the left and all other terms to the right. 
+6.2x-0.2x=-1.2-3.72

We simplify left and right side of the equation. 
+6x=-4.92

We divide both sides of the equation by 6 to get x. 
x=-0.82