Answer:
3 * (x+4)
Step-by-step explanation:
It says three times the sum of a number and 4.
We can express the number we don't know with an x. So the phrase is saying that we have the sum of a number and 4 which is the same as writing:
x+4
Also, it says three times this sum; so we know that the sum is being multiplied by 3:
3 * (x+4)
If we read this it will be the same as the phrase "three times the sum of a number and 4)
