Question

1. (y-35)+12=32
2. 56-(x+12)=24
3. 55-(x-15)=30

Answer 1

(у-35)+12=32
у=32-12+35
у=55
(55-35)+12=32
32=32

Answer 2

1. (у-35)+12=32
у-35=32-12
у-35=20
у=20+35
у=55
(55-35)+12=32
2. 56-(х+12)=24
х+12=56-24
х+12=32
х=32-12
х=20
56-(20+12)=24
3. 55-(х-15)=30
х-15=55-30
х-15=25
х=25+15
х=40
55-(40-15)=30