Let X = the number.
You have 21 more than 3 times the number which is:
3x +21 = -15
Subtract 21 from both sides:
3x = -36
Divide both sides by 3:
x = -36 /3
x = -12
The answer is B.
Answer:
-13
Explanation:
Rewrite Equation:
(3 · x) + 21 = -15
Subtract 21 From Both Sides:
(3 · x) + 21 - 21 = -15 - 21
Simplify:
3x = -36
Divide Both Sides By 3:
[tex]\bold{\frac{3x}{3} \ = \ \frac{-36}{3} }[/tex]
Simplify:
x = -12
Mordancy.
