x-4(9-x)=3x+2
x-36+4x=3x+2
x-3x+4x=36+2
2x=38
x=19
х-4(9-х)=3х+2;
х-36+4х=3х+2;
х+4х-3х=2+36
2х=38
х=38:2
х=19
x-4(9-x)=3x+2
x-36+4x=3x+2
x-3x+4x=36+2
2x=38
x=19
х-4(9-х)=3х+2;
х-36+4х=3х+2;
х+4х-3х=2+36
2х=38
х=38:2
х=19