Question

помогите решить 979 плизз

Answer 1

(5х+1)/3=(1+8х)/5
5×(5х+1)=3×(1+8х)
25х+5=3+24х
25х-24х=3-5
х=-2

(4х-5)/7-(9х-25)/2=0
2×(4х-5)-7×(9х-25)=0
8х-10-63х+175=0
-55х=-165
х=3