15*(2х+3)+6*(4+8х)-37х-69=
15*(2х+3)+6*(4+8х)-37х-69=30х+45+24+48х-37х-69= =41х
15*(2х+3)+6*(4+8х)-37х-69=30х+45+24+48х-37х-69=69+41х-69=41х