👤

(6×4-c×3)+9×4=3×10+3×3

Răspuns :

(6x4-cx3)+9x4=3x10+3x3
(24-3c)+36=30+9
-3c=39-60
-c=-21:3
c=7

(24-3×c)+36=30+9
(24-c×3)+36=39
24-3×c=39-36
24-c×3=3
3×c=24-3
3×c=18
c=18:3
c=6


R: c=6