Answer: The answer is D. 16.
Step-by-step explanation: Now let's solve your equation by step-by-step-by-step in another way: \(\sqrt{j}+\sqrt{j}+14=3\sqrt{j}+10\) to \(2 \sqrt{j}+14=3\sqrt{j}+10\).
Step 1. Add -3√{j} to the both sides: \(2\sqrt{j}+14+-3\sqrt{j}=3\sqrt{j}+10+-3\sqrt{j}\) to \(-\sqrt{j}+14=10\).
Step 2. Add –14 to the both sides: \(-\sqrt{j}+14+-14=10+-14\) to \(-\sqrt{j}=-4\).
Step 3. Divide the both sides by -1 and now we can solve Square Root:
\(\frac{-\sqrt{j}}{-1}=\frac{-4}{-1}\) to \(\sqrt{j}=4\), \(j=4^{2}\) (square both sides), and make sure to plug them in to make sure they work to check the answers; ∴, your answer is D. 16, please mark me as brainliest, and have a happy holidays! :D
