Question

Solve this simplification 

2x+20%ofx=12.1

Answer 1

$2x+(20/100)*x=12.1$
$=> 2x+x/5=12.1$
$=> 11x/5=12.1$
$=> 11x=60.5$
$=> x=5.5$

Answer 2

2x + 20/100 * x = 12.1

2x + 0.20x = 12.1

2.2x = 12.1

x= 5.5