Question

×+2=18supra 15

×supra​

Answer 1

Explicație pas cu pas:

$x + 2 = \frac{18}{15}$

$x = \frac{18}{15} - 2 = \frac{18 - 2 \times 15}{15} = \frac{18 - 30}{15} - \frac{12}{15} = - \frac{4}{5}$

$= > x = - \frac{4}{5}$