Bibi80539ask
a fost răspuns

daca minus 5 supra 8 ori x plus 7 supra 4 egal 0 atunci x este ​

Răspuns :

Slavitescudoraask

-5/8 × x +7/4 = 0

-5/8x = -7/4

5/8x  = 7/4 (am trecut minusul din stanga in dreapta si a dat plus )

x = 7/4 : 5/8

x = 7/4 × 8/5

x = 14/5

-5/8×x+7/4=0

-5/8×x= -7/4

5/8×x=7/4

x=7/4:5/8

x=7/4×8/5

x=14/5