Solve and proof for the value of A.

Question

0.3A+(0.2A-0.5)+0.2(A+2)=1.3

I have done this question over and over I keep getting answers like 2 or3.25 but when I sub in thoes answers for A It does not work.

Answer 1

A(.3+.2+.2)-.5+.4=1.3
.7A-.1=1.3
.7A=1.4
A= 2