Răspuns:
ADEVARAT
Explicație pas cu pas:
2 × y = (7 - 4 : 4) × 3
2 × y = (7 - 1) × 3
2 × y = 6 × 3
2 × y = 18
y = 18 : 2
y = 9
6 × z = 16 : 4 × 2 - 0 × 99 + 3×3 + 1
6 × z = 4 × 2 - 0 + 9 + 1
6 × z = 8 - 0 + 9 + 1
6 × z = 8 + 9 + 1
6 × z = 17 + 1
6 × z = 18 / : 2
3 × z = 9
y = 9 |
| ==> y = 3 × z ==> este adevarat
3 × z = 9 |