а)14x-(8x+3x)=1512
б) 11y-(5y-3y)=8136
а)14x-(8x+3x)=1512,
14х-11х=1512,
3х=1512,
х=1512/3,
х=504,
б) 11y-(5y-3y)=8136,
11у-2у=8136,
9у=8136,
у=8136/9,
у=904
А) 14x-8x-3x=1512 4x=1512 x=378 б) 11y-5y+3y=8136 9y=8136 y=904