Five more than a number tripled is half the number. What is the number?
A.
6
B.
–2
C.
–1
D.
1

Question

Five more than a number tripled is half the number. What is the number?
A.
6
B.
–2
C.
–1
D.
1

jigglypuff314 · Answer

5 + 3x = (1/2)x  solve for x...

anonymous · Answer

I believe it is B. -2
-2x3 = -6 +5 =-1 which is half of -2

jigglypuff314 · Answer

5 + 3x = (1/2)x    subtract both sides by (1/2)x
-(1/2)x   -(1/2)x
5 + 2.5x = 0        subtract both sides by 5
-5             -5
2.5x = -5            then divide both sides by 2.5
/2.5      /2.5
x = - 10/5 = -2  <--

anonymous · Answer

$$3x+5=\frac{ 1 }{ 2 }x$$

subtract 1/2x
$$\frac{ 5 }{ 2 }x+5=0$$

subtract 5
$$\frac{ 5 }{ 2 }x=-5$$

multiply by 2 to get rid of fraction
$$5x=-10$$

divide by 5
$$x=-2$$