Answer:
5c + 3 = 4
Explanation:
"Sum" -- add two quantities
"times" -- multiply two quantities
"is" -- is equal to...
The sum of 5 times a number and 3 is 4.
We're calling the number c. 5 times the number is 5c.
The sum of 5c and 3: 5c + 3
The sum of 5c and 3 is 4: 5c + 3 = 4