Answer:
x = 9
Step-by-step explanation:
So when you solve this you get: 2x + 20 = 38
You would then subtract 20 from 38 to isolate the 'x' variable, thus giving you 2x = 18. From here you would divide by two to completely isolate x.
x = 9. The variable 'x' equals 9. If you put the number 9 into the equation in place of 'x' then you would get 38 = 38, therefore proving that x = 9