Question

Deci ( 2 supra 10 - 4 supra 5 ) x 2 supra 3 = 
Am facut dar vreau sa vad daca e bine.

Answer 1

$( \frac{2}{10}- \frac{4}{5} )* \frac{2}{3} = ( \frac{1}{5}- \frac{4}{5}) * \frac{2}{3} = -\frac{5}{5} * \frac{2}{3}= \frac{10}{15} = \frac{2}{3}$   


4*(x-3)=16 | :4
    x-3 = 4  |+3
       x=7