IN the question
20-2.7+1+(3)+10
am I right when I PEMDAS
20-14+4+10=
20-28=-8?
20-2*7+1+(3)+10
20-14+4+10
6+4+10
10+10
20
In order to get your answer, you'd need
20-(14+4+10)
Also, online you should use * for multiplication, so you don't get things mixed up with decimal points, as in 2.7