Question

(1) x+5=20
maka x=
(2) x-8=16
maka x=
(3)-x-8=10
maka x=
(4) x+20=-5
maka x=

Answer 1

1. x=20-5
x=15
2.x=16+8
x=24
4. x=-5+(-20)
x=-25
3. -x=8+10
-x=10(dibagi -1)
x=-10

Answer 2

1) x = 20 - 5 = 15
2) x = 16 + 8 = 24
4) x = (-5) - 20 = -25