7х-42=5х+5-3х-6
7х-42=2х-1
7х-2х=-1+42
5х=41
х=41/5
х=8,2
3(х-8)/5+7(х+5)/6=4(7х+1,5)/ 15+1/3 (3x-24)/5+(7x+35)/6=(28x+6)/15+1/3 6 (3x-24)+5(7x+35)=2(28x+6)+10
x=7
7х-42=5х+5-3х-6
7х-42=2х-1
7х-2х=-1+42
5х=41
х=41/5
х=8,2
3(х-8)/5+7(х+5)/6=4(7х+1,5)/ 15+1/3 (3x-24)/5+(7x+35)/6=(28x+6)/15+1/3 6 (3x-24)+5(7x+35)=2(28x+6)+10
x=7