Question

Five more than a number tripled is half the number. What is the number?




A.

6


B.

–2


C.

–1


D.

1

Answer 1

a number: x
a number tripled: 3x
5 more than a number tripled: 3x + 5
half the number: x/2

can you solve it?

Answer 2

idk how to do it

Answer 3

just read the the word and express it in mathematical notations

Answer 4

5 more then a number triples is half the number
3x + 5 = 1/2x
5 = 1/2x - 3x
5 = 1/2x - 6/2x
5 = - 5/2x
5/(-5/2) =x
5 * -2/5 = x
- 10/5 = x
-2 = x
check..
3x + 5 = 1/2x
3(-2) + 5 = 1/2(-2)
-6 + 5 = -2/2
-1 = -1 (correct)
ANSWER: -2

Answer 5

I parsed the words for you:
\[3x+5 = \frac{x}{2}\]To solve this, I would multiply everything by 2
\[6x + 10 = x\]Subtract x from both sides
\[5x + 10 = 0\]subtract 10 from both sides
\[5x = -10\]Divide both sides by 5
\[x = -2\]