Question

Împărțirea cu rest 0 a nr.naturale ex 8 sa se afle nr.natural x ::3x=6 x(4+2×3)=120 12x=84 (3+5)×x=16 x(16-3×4)=20 5x+7=62

Answer 1

Răspuns:

Explicație pas cu pas:

x : 3 = 6

x = 6 × 3 = 18

__________

x(4 + 2×3) = 120

x(4 + 6) = 120

10×x = 120

x = 120 : 10 = 12

_____________

12x = 84

x = 84 : 12 = 7

_____________

(3 + 5)× x = 16

8×x = 16

x = 16 : 8 = 2

______________

x(16 - 3×4) = 20

x(16 - 12) = 20

x ×4 = 20

x = 20 : 4 = 5

_____________

5x + 7 = 62

5x = 62 - 7 = 55

x = 55 : 5 = 11

Answer 2

3•X=6

X=6:3

X=2

X•(4+2×3)=120

X•(4+6)=120

X•10=120

X=120:10

X=12

12•X=84

X=84:12

X=7

(3+5)•X=16

8•X=16

X=16:8

X=2

X•(16-3•4)=20

X•(16-12)=20

X•4=20

X=20:4

X=5

5•X+7=625•X=62-7

5•X=55

X=55:5

X=11