Posted by **chrissy** on Wednesday, August 1, 2007 at 7:25pm.

-7+ 5x = 10x-2? im not sure I know its

-1, but im not sure how.

-7 + 5x = 10x - 2

Since we need to get the unknowns on one side and the knowns on the other side and change their signs:

5x - 10x = 7 - 2

-5x = 5

x = -1

wait how did you what number did you subtract or add from where? to get that? to get 5x-10x=7-2?

is this right??

-7=5x=10x-2

-7+5X-10X=10X-10X-2

-7+-5=-2

-7+7-5X=-2+7

-5X=5 X=-1

Except for typing = instead of + after the -7 in the first line,

and

-7+-5=-2 instead of -7 -5x = -2 in the third line,

the rest is OK.

You got the right answer but the intermediate steps contain errors that may just be sloppy typing

## Answer This Question

## Related Questions

- Math Algebra 1 - i was wondering if anyone could help me on this problem. expand...
- Math - Find the equation of the tangent line 5x^2+y^2=14 at (1,3). P.S: It's ...
- Algebra - I need to make sure this is correct. 5/2x+1/4x=11/4+x 4(5/2x+1/4x=11/4...
- math - f(x) = x^2 + 10x + 24 =(x^2 + 10x)+ 24 =(x^2 + 10x + 25 - 25) + 24 f(x...
- Pre-algebra - Solve. 29x – 2(9x – 0.455) = 10x + 0.525 Give us you thinking on ...
- Intermediate Algebra - Determine whether the point (1, 8) is a solution of the ...
- Math - Can someone please check my answers below for accurateness? The ...
- Algebra I - Thanks Reiny, but I'm still lost. I understand how you multipled by ...
- math - 1. Gina wrote this system of linear equations: 2x + y = 7 4x + 5y = 11 ...
- algebra - Gina wrote this system of linear equations: 2x + y = 7 4x + 5y = 11 ...

More Related Questions