Question 220115
{{{0.12x+3-0.8x=0.22x-0.6}}} simplify left side by collecting like terms
{{{0.04x + 3 = 0.22x - 0.6}}} isolate constants on one side and variables on the other.
{{{3 + 0.6 = 0.22x - 0.04x}}} simplify
{{{3.6 = 0.18x}}} isolate x
{{{3.6/0.18 = x }}} 
{{{20 = x }}}