Question

-3(0.5•0.6x)=7(0.4x+0.1)–1.2

Answer 1

-3(0.5•0.6x)=7(0.4x+0.1)–1.2
-1,5-1,8x=2,8x+0,7-1,2
-1,8x-2,8x=0,7-1,2+1,5
-4,6x=1
x=1:(-4,6)
x=$- frac{5}{23}$