Question 352679: twice a number, added to 3, is equal to the negative of the number. What is the number? Found 2 solutions by unlockmath, ewatrrr:Answer by unlockmath(1688) (Show Source):
You can put this solution on YOUR website! Hello,,
Let x be the number so we can set up the following equation:
2x+3=-x
Subtract 3 and add x to both sides to get:
3x=-3
Divide by 3 to get:
x=-1
Got it?
RJ
www.math-unlock.com
You can put this solution on YOUR website! Hi,
Let n represent the number
.
Question States: Write as You Read
2n + 3 = -n
.
Simplify and solve
3n = -3
.
n = -1
.
check your answer
2*(-1) + 3 = -(-1)
.
Have a great day!
