Question

pls nu stiu...ajutoor

Answer 1

x-$\frac{2x}{5}$ -13=8

5x-2x-13*5=8*5
3x-65=40
3x=40+65
3x=105
x=105:3
x=35

Answer 2

$x- \frac{2}{5} *x-13=8 \\ x(1- \frac{2}{5} )=21 \\ x* \frac{3}{5} =21 \\ x= \frac{5*21}{3} \\ x=5*7=35$