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I'm not asking to have you do my homework, this is one section of a huge problem & it's been so long, that I forgot how to do it! Ha! Here's the problem, how do I solve for x? I already know the answer, I need to know step by step how it's done though. I can't figure it out.

.12 = ( x - $110,000 ) / x

2006-12-12 02:00:24 · 8 answers · asked by Brooke~* 3 in Education & Reference Homework Help

There is a decimal in front of 12, in case it's too hard to see it. It's point12 = etc.

2006-12-12 02:04:46 · update #1

8 answers

You need to bring x to one side

0.12 = ( x - $110,000 ) / x
Multiply both sides by x to get
0.12x = x-110,000

subtract x to each side:
0.12x - x = -110,000

simplify the left side
-0.88x = -110,000

divide -0.88 on each side
x= -110,000/-0.88
x= 110,000/0.88
x=125,000

2006-12-12 02:13:25 · answer #1 · answered by borscht 6 · 1 0

First step: You must multiply "x" on both sides so you can get rid of the fraction. So you get .12x=x-100,000. From there you need to get x on one side adn teh numbers on the other side. You will get x=the answer. Plug in the number to x on the original equation to see if it matches.

2006-12-12 10:17:43 · answer #2 · answered by ? 2 · 0 0

144

2006-12-12 10:06:10 · answer #3 · answered by ASH 2 · 0 1

0.12 = x/x - 110,000/x
0.12 = 1 - 110,000/x
110,000/x = 1 - 0.12
x = 110,000/(0.88)
x = 125,000

That's it. How's that?

2006-12-12 10:09:01 · answer #4 · answered by Octopi 1 · 1 0

Multiply both sides by x

0.12x = x - $110,000

x is the same as 1x, so remove that from both sides

-0.88x = -$110,000
x = $125,000

2006-12-12 10:08:43 · answer #5 · answered by p_rutherford2003 5 · 1 0

cross multiply x into 12
so 12x=x-1100000
12x-x=110000
11x=110000
x=-110000/11
x=-10000
problem solved
the answer is a minus
-10000

2006-12-12 10:03:16 · answer #6 · answered by blackcat XIII 5 · 1 1

.12 = ( x - $110,000 ) / x

.12x = x - $110,000

.12x-x = - $110,000

-0.88x = - $110,000

x = - $110,000 /-0.88

=$125000

2006-12-12 10:04:13 · answer #7 · answered by thepaka4 1 · 0 0

12 = (x- $110000)/x

->

12x = x - $110000

->

12x - x = -$110000

->

11x = -$110000

->

x = -$110000 / 11

->

x = -$10000

2006-12-12 10:05:30 · answer #8 · answered by Sir Digby Chicken Bhuna 3 · 0 0

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