((x+3)*50+3)*4=2012
(50x+150+3)*4=2012
200x+600+12=2012
200x=1400
x=7
x+3*50+3*4=2012
х=2012:4-3:50-3
х=7
((x+3)*50+3)*4=2012
(50x+150+3)*4=2012
200x+600+12=2012
200x=1400
x=7
x+3*50+3*4=2012
х=2012:4-3:50-3
х=7