20
x=6=x=5+x=13+x=20 x cannot = x+5. This question has no answer.
9 x 20 = 180
x+3 = 20 x = 20-3 x = 17
10
x2 - x = 20 x = 5
x-14 = 20 x = 20+14 x = 34
It is an equation and the value of x is 20
34
x = 20
3x+5=20 x=5 since 5x3+5=20
20
If: x+18 = 20 Then: x = 2