👤

exercitiu 420:(c-68)=6

Răspuns :

420:(c-68)=6

c-68=420:6

c=70+68

c=138
420 : ( c - 68 ) = 6
c - 68 = 420 : 6
c - 68 = 70
c = 70 + 68
c = 138
verificam
420 : ( 138 - 68 )= 420 : 70=6