Question

1) 0,3(5х-7) =3(0,2х+3,2) 2) 4(1,2х+3,7)-2,8=5,2х 3) (4 1\6у+11 1\4)4\15=2\3у +5 2\3

Answer 1

1)1,5х-2.1=0,6х+9.6
1,5х-0.6х=9,6+2,1
0.9х=11,7
х=11,7/0.9=13