Question

5. se X= 5/2 ,então 2x+8 vale quanto? ​

Answer 1

$2 \times \frac{5}{2} + 8 \\ \\ \frac{2 \times 5}{2} + 8 \\ \\ \frac{10}{2} + 8 \\ \\ 5 + 8 = 13$