Question

решите уравнение пж

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