Х+0,48=0,7-х3; 23(112х+35)-45(512х-12)=135

Question

Х+0,48=0,7-х3; 23(112х+35)-45(512х-12)=135

Answer 1

Х+0,48=0,7-3х
х+3х=-0,48+0,7
4х=0,22
х=0,055

Answer 2

7x-15+18x-15x+8=0

10x=7

x=0,7