Question

3×3×3×3-3:3×3:3+3:3×3×3-y×3=3:3-3:3​

Answer 1

Răspuns:

9-1+9-y×3=0

-y=17×3

-y=51

Answer 2

Explicație pas cu pas:

9×9-1×3:3+1×3-y×3

81-3:3+3-y×3

81-1+3-y×3. =2

80+3-y×3

83-y×2

y×2=81

y=81:2=40,5