-0.08(х+5)-1.3(2-5х)=-6.21

Question

-0.08(х+5)-1.3(2-5х)=-6.21

Answer 1

-0,08х-0,4-2,6+6,5х=-6,21
6,42х-3=-6,21
6,42х=-6,21+3
6,42х=-3,21
х=-3,21/6,42
х=-0,5