(x-28)+53=60
x – 28 + 53 = 60
x = 60 – 53 + 28
x = 35
55-(42-x)=35
55 – 42 + x = 35
x = 35 + 42 – 55
x = 22
(25+x)-32=15
25 + x – 32 = 15
x = 15 + 32 – 25
(x-28)+53=60
x – 28 + 53 = 60
x = 60 – 53 + 28
x = 35
55-(42-x)=35
55 – 42 + x = 35
x = 35 + 42 – 55
x = 22
(25+x)-32=15
25 + x – 32 = 15
x = 15 + 32 – 25
x = 22