Tentukan himpunan penyelesaian dari A.lx+2l=2 B.l3x+1l=4

a.) lx+2l=2
✐ x+2 = 2
x = 2-2
x = 0
✐ -(x+2) = 2
-x-2 = 2
-x = 2+2
-x = 4
x = -4

HP = {0, -4}

b.) |3x+1| = 4
✐ 3x + 1 = 4
3x = 4-1
3x = 3
x = 1
✐ -(3x+1) = 4
-3x-1 = 4
-3x = 4+1
-3x = 5
x = - 5/3

HP = {- 5/3 , 1 }

A. |x+2|=2
-> x+2=2
-> x=2-2=0
-> ( -x+2)=2
-> -x=2+2
-> -x=4 -> x = -4 -> Hp={-4}

B. |3x+1|=4
-> 3x+1=4
-> 3x=4-1
-> -3x= 4+1 =5 -> x= -5/3 Hp={-5/3}