Answer:
x=0.2
Step-by-step explanation:
2/5=0.4
0.4-0.2=0.2
x+0.2=2/5
x+2/10=2/5
simplify 2/10
x+1/5=2/5
subtract 1/5 from both sides
x-1/5=2/5-1/5
x=1/5
your answer is 1/5 or 0.2
