Question 283221
if two is added to a number and the sum is tripled, the result is 20 more than the number

let the number bex

2 added to the number = x+2 

sum is tripled = 3(x+2)

20 more than the number == x+20

3(x+2)=x+20

3x+6 = x+20

3x-x=20-6

2x=14

x=14/2

x=7   which is the number