Question

-0,2x+1,5y=6,5 решите

Answer 1

$y = \frac{6.5 + 0.2x}{1.5} = \frac{65 \times 10}{10 \times 15} + \frac{2 \times 10}{10 \times 15} x = \frac{65}{15} + \frac{2}{15} x = \frac{65 + 2x}{15}$