Step-by-step explanation:
|x|-2=7 -------equation 1
/x/ = 5+2
|x| = 7
x = +- 7
check:
put x =-7 in equation one
|-7|-2 = 5
7-2=5
5=5
hence correct
not put x= 7 in eq 1
|7| - 2 = 5
7-2 = 5
5= 5
just remember that when we take a variables absolute value so we must keep plus minus sign on other side whereas if we take absolute value of constant then its always positive.
