Question

-7*|x+3|=5*|x+3|-6

Dau coroana

Answer 1

Răspuns:

-5/2

Explicație pas cu pas:

$-7*|x+3|=5*|x+3|-6$

$-7|x+3|-5|x+3|=-6\\-12*|x+3|=-6\\|x+3| = \frac{1}{2}\\=>x+3=\frac{1}{2}\\ x=-\frac{5}{2}\\=>x+3=-\frac{1}{2}\\ x+3=-\frac{7}{2}$

Answer 2

Răspuns:

-7*|x+3|=5*|x+3|-6

-7|x+3|=5|x+3|-6

-7|x+3|-5|x+3|=-6

-12|x+3|=-6 /:(-12)

-|x+3|= -6/-12

|x+3|= 1/2

Primul caz :

x+3>0

x> -3

x+3=1/2

x= 1/2-3

x= 1/2-6/2

x= - 5/2

Al doilea caz:

x+3<0

x< - 3

x+3= -1/2

x= -1/2-3

x= -1/2-6/2

x= -7/2

Explicație pas cu pas: