(15(7-2х)-(4х-2))/9=(х-19)/2
(105-30х-4х+2)/9=(х-19)/2
(-34х+107)/9=(х-19)/2
(-34х+107)*2=(х-19)*9
-68х+214=9х-171
-77х=-385
х=5
(15(7-2х)-(4х-2))/9=(х-19)/2
(105-30х-4х+2)/9=(х-19)/2
(-34х+107)/9=(х-19)/2
(-34х+107)*2=(х-19)*9
-68х+214=9х-171
-77х=-385
х=5