Question

Determina numarul a stains ca a+3 supra27-12supra 27=10supra27

Answer 1

$\frac{x + 3}{27} - \frac{12}{27} = \frac{10}{27}$

$\frac{x + 3 - 12}{27} = \frac{10}{27}$

$\frac{x - 9}{27} = \frac{10}{27}$

$x - 9 = 10$

$x = 10 + 9 = 19$