Question

aflați x daca: 71•2+72•3+73•4+75•6+×=12370

Answer 1

71 • 2 + 72 • 3 + 73 • 4 + 75 • 6 + x = 12 370

142 + 216 + 292 + 450 + x = 12 370

1 100 + x = 12 370

x = 12 370 - 1 100

x = 11 270