two times a number plus three equals one half of the number plus 12.what is the number?
a.3.6 b.6 c.8 i.10
please work out problem

Question

two times a number plus three equals one half of the number plus 12.what is the number?
a.3.6 b.6 c.8 i.10
please work out problem

anonymous · Answer

Let's call the number we're looking for x. Then we would know that the following must hold for x:$$2x + 3 = \frac{x}{2} + 12$$Now you just have to solve this for x. Can you do that on your own?

anonymous · Answer

can you just give me the problem worked out with the answer cause im in a test now

anonymous · Answer

$$2x - \frac{x}{2} = 12 - 3$$$$\frac{3}{2}x = 9$$$$3x = 18$$$$x = 6$$Lol. Better try learning this stuff next time. It's not really hard and you're probably going to need it anyway later on. Good luck for your test

anonymous · Answer

6=-3(x+4)

anonymous · Answer

6 = -3x -12 
3x = -18
x = 6

anonymous · Answer

@susanc27 that's not right. if 3x = - 18, then x = -6.

anonymous · Answer

Right. Typo. Thanks for the correction.