Question

a+b=c
a-b=b
b+c=32
a,b,c=?

Answer 1

a+b=c
a-b=b
b+c=32
a=2b
2b+b=c
3b=c

3b+b=32
4b=32
b=8
a=16
c=24

Answer 2

$a+b=c\\a-b=b\\a=b+b\\a=2b\\a+b=c\\2b+b=c\\3b=c\\b+c=32\\b+3b=32\\4b=32\\b=\frac{32}{4}\\b=8\\ a=2b=8*2=16\\c=3b=8*3=24$