14(2x-3)-5(x+4)=2(3x+5)+5x 9(3x-7)+3(8x-11)=3(9x+8) 6(7x-11)-13(x-6)=14(2x+1)

14(2х-3)-5(х+4)=2(3х+5)+5х
28х-42-5х-20=6х+10+5х
23х-62=11х+10
23х-11х=10+62
12х=72
х=72:12
х=6
9(3х-7)+3(8х-11)=3(9х+8)
27х-63+24х-33=27х+24
51х-96=27х+24
51х-27х=24+96
24х=120
х=5
6(7х-11)-13(х-6)=14(2х+1)
42х-66-13х+78=28х+14
29х+12=28х+14
29х-28х=14-12
х=2