Question

Решите плиззззз!!!!

1) 5(x-4)=х+8
2) 9-7(х+3)=5-6х
3)(7х+9)-(11х-7)=8
4)3,6+5у=7(1,2-у)
5)0,4(6-4х)=0,5(7-3х)-1,9