Question

-0,2x+1,5y=6,5 решите

Answer 1

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