#### Answer

$x=7$

#### Work Step by Step

$3x+4=5x-10 \\\\ 4=2x-10 \\\\ 14=2x \\\\ x=7$
We first subtract by 3x on both sides. We then add 10 to both sides. Finally, we divide both sides by 2 to get that x=7. We plug our solution back into the equation and confirm that the answer is, indeed, correct.