Final answer:
Micheal's number is -8.
Step-by-step explanation:
To solve this problem, we'll start by letting 'x' represent the number Micheal picked. According to the problem, if he adds ten to three times his number, he gets -14. So we can set up the equation: 3x + 10 = -14. To solve for x, we'll subtract 10 from both sides of the equation: 3x + 10 - 10 = -14 - 10, which simplifies to 3x = -24. Finally, we'll divide both sides by 3 to isolate x: x = -24/3, which simplifies to x = -8.
Learn more about Solving equations with unknown variables