Question

(40:c+16):8=9:3
mod de rezolvare

Answer 1

(40:c+16):8=9:3
(40:c+16):8=3
40:c+16=8x3
40:c+16=24
40:c=24-16
40:c=8
c=40:8
c=5
proba:(40:5+16):8=(8+16):8=24:8=3=9:3

Answer 2

Mod de rezolvare:metoda ecuatiei; (40:c+16):8=9:3; (40:c+16):8=3|×8; 40:c+16=24|-16; 40:c=8; c=40:8; c=5