Question

Ajutatima la ecuatiile din imagine...Va rog mult!

Answer 1

Ex 5.

$\frac{3}{5} - \frac{8}{10} x= \frac{9}{5}$

$\frac{3}{5} - \frac{4}{5} x= \frac{9}{5}$  inmultim ambii membri cu 5 ca sa scapam de numitori:

3-4x=9
4x= -6
x= -$\frac{3}{2}$= -1$\frac{1}{2}$= -1,5

Ex 6.

4x-2-3x+6=5x+15-17
x+4=5x-2
6=4x
x=$\frac{6}{4} = \frac{3}{2} =1,5$