4(х +2)=7(2х -1) -9(3х-4)+30

4(х+2)=7(2х-1)-9(3х-4)+30

4х+8=14х-7-27х+36+30

4х+27х-14х=36+30-7-8

17х=51

х=51:17

х=3

4(х +2)=7(2х -1) -9(3х-4)+30

4х + 8 = 14х - 7 - 27х + 36 + 30

4х + 8 = 59 - 13х

17х = 51

х = 51 : 17

х = 3

Ответ. х=3.