Answer:
5
Explanation:
1/5 x + 1/3 = 4/3. Subtract 1/3 from both sides to get 1/5 x = 3/3 or 1. Multiply by 5 to cancel out the denominator to get x = 5. You can plug it back into the equation to check if it is right. 1/5(5) + 1/3 = 4/3 = 1 + 1/3 = 4/3 = 3/3 + 1/3 = 4/3.