(y:4-35)*120=3000
(y:4-35)=3000 : 120
(y:4-35) = 25
у : 4 = 25 + 35
у : 4 = 60
у = 60 * 4
у = 240
(y/4-35)*120=3000y/4-35=3000/120y/4-35=25y/4=25+35y/4=60
y=60*4
y=240
(y:4-35)*120=3000
(y:4-35)=3000 : 120
(y:4-35) = 25
у : 4 = 25 + 35
у : 4 = 60
у = 60 * 4
у = 240
(y/4-35)*120=3000
y/4-35=3000/120
y/4-35=25
y/4=25+35
y/4=60
y=60*4
y=240