13x-8=5x+16; 7,8-4 (6-0,8x)=0.5 (7x+6)

Question

13x-8=5x+16;
7,8-4 (6-0,8x)=0.5 (7x+6)

Answer 1

1) 13х-8=5х+16; 13х-5х=16+8; 8х=24; х=3.
2) 7,8-4(6-0,8х)= 0,5(7х+6); 7,8-24+3,2х= 3,5х +3; 3,2х-3,5х= 3-7,8+24; -0,3х=19,2;
х= 19,2: (-0,3); х=64.