Posted by **Christian** on Thursday, August 30, 2007 at 5:10pm.

1. Solve the following for x.

3-(x+(-4))= 2x-6+5x

I figured that the answer is no solution. Is this correct?

I have been working with my friend on this next problem and neither of us know which is correct.

2. Solve for r. I=P(1+rt)

The first answer is I-P/Pt=r.

The second answer is I-1P/t=r.

Are either of these answers correct?

- Algebra 2 -
**DrBob222**, Thursday, August 30, 2007 at 5:23pm
1. Solve the following for x.

3-(x+(-4))= 2x-6+5x

**remove innner parentheses.
**

3-(x-4)=2x-6+5x

remove next set of parentheses.

3-x+4=2x-6+5x

combine terms on left and right,

7-x=7x-6

move numbers to right and xs to left.

-x-7x=-6-7

combine terms.

-8x=-13

Multiply through by -1

8x = 13

x=13/8

I figured that the answer is no solution. Is this correct?

I have been working with my friend on this next problem and neither of us know which is correct.

2. Solve for r. I=P(1+rt)

The first answer is

**I-P/Pt=r**.**This one is correct.**

The second answer is I-1P/t=r.

Are either of these answers correct?

- Algebra 2 -
**DrBob222**, Thursday, August 30, 2007 at 5:33pm
Check my work.

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