# algebra

posted by .

Find -x when x=20
x=-20

I do not how to do this problem I need help.
{3(5-8)-3}-{1-(2-6)}=15+-9-2+6
help with this problem.

• algebra -

the problem where you need to find x is right.

now, about the other problem... :

{3(5-8)-3}-{1-(2-6)}=15+-9-2+6
{3(-3)-3} – (-4) = 15+7+6
{-9 * -3} –(-4) = 28
27- -4=28
(remember change/change)
27 + 4 = 28
31=28

## Similar Questions

1. ### algebra

(2x+3)/5 = -(3x-2)/2 - (-3/2)(-3/2) I've done this problem a few times and keep getting -37/38 which seems like a dumb answer to the problem. I know I think the answer should be a whole number so I don't know if that's what's confusing …
2. ### algebra

Could you please check my answer to this problem: Simplify the expression Original problem: (3x^2+10x-8)/(3x^2-17x+10) x (2x^2 + 9x -5)/(x^2 + 3x-4) The answer I got was: (3x +4)(x-2)/ (3x-2)(x-5) x (2x-1) ( x +5)/ (x +4) (x-1) so …
3. ### Algebra

3x[1]+x[2]<=12,x[1]+x[2]<=15,z=2x[1]+x[2] I need the simplex for this problem. I have the right answer but keep coming up with a differant answer. This in our book as a practice problem.
4. ### Physics

I believe I've done this right A penguin sildes 1.5 m/s across the ice on her belly. The coefficient of kinetic friction is .02 How far will she slide before stopping?
5. ### algebra

How do you solve this math problem? h= -8t^2+40t then it says: when t=0 and when t= 5 there are 2 questions that i have to answer: 1.) find the value of h 2.) graph this equation - i don't know if i did the problem right but when i
6. ### algebra

I need to know if I am doing this problem right when sustitution method. y+2x=3 y+2x=-4 y+2x=3 -1(y+2x=3)-y-2x=-4 now add the two equation y-2x=3 -y-2x-4 the answer would be -4y=7 then divided -4=7 answer 1.75 I no that there is more …
7. ### algebra

I need to know if I am doing this problem right when sustitution method. y+2x=3 y+2x=-4 y+2x=3 -1(y+2x=3)-y-2x=-4 now add the two equation y-2x=3 -y-2x-4 the answer would be -4y=7 then divided -4=7 answer 1.75 I no that there is more …
8. ### algebra

systems of nonlinear equations i need to help i have tried this problem but i cannot find the right answer i need to determine the real solutions for this: x^2+4xy=10 4x^2-xy=6