Question

4 intreg si 1 pe 2 - x este egal cu -10

Answer 1

$4 \frac{1}{2} -x=-10 \\ \\ 4 \frac{1}{2}= \frac{4*2+1}{2} = \frac{9}{2} \\ \\ \frac{9}{2}-x=-10$

aducam la acelasi numitor comun (2)

$9-2x=-20 \\ \\ 9+20=2x \\ \\ 29=2x \\ \\ x= \frac{29}{2}$