Question

substitution method slove it​

Answer 1

$0.2x + 0.3y = 13 \\ \frac{2}{10} x + \frac{3}{10} y = 13 \\ x + y = \frac{13 \times 10 \times 10}{2 \times 3} \\ x + y = \frac{1300}{6} \\ x + y = 216.66 = 217$

Answer 2

hope this answer will help you.