Algebra.Explain please?

Question

-x-3=6. How do you do that?

Answer 1

-x-3=6
+3 +3
(add 3 to both sides)
-x=9
(x cannot be negative, so divide by -1)
x=-9
Hope this helps

or you can change the problem to this:

x+3=-6
-3 -3
(subtract 3 from both sides)
x=-9

Either way you get the same answer, both are correct

Then you can go back and check your answer by substituing wherever you see "x" with -9 and see if you get a true statement.

Answer 2

-x-3=6
-3+3(they cancel each other out)=6+3(u add the number in the equation to both sides, not the variable)
-x=9( can not be negative x, so u times both sides by -1) so u have x=-9

Answer 3

-x-3=6
-x-3 (+3) = 6 (+3)
-x = 6 + 3 Add 3 to get it to the other side of = sign
-x = 9 Divide by -1 on both sides to get x by itself
x = -9

That's your answer: x = -9

PS... An -x always means -1(x). So you know you can get rid of the -1 and get x by itself.

Answer 4

Add 3 to both sides to get x=9

Answer 5

-x - 3 = 6
-x - 3 +3 = 6 + 3
-x = 9
-1 * (-x) = -1 * 9
x = -9

Answer 6

You want to get the x by itself. First add 3 to both sides. (This is the opposite of subtracting the three.(
-x-3+3=6+3
-x=9
Now, you are left with a negative x, so you will just change the signs of both sides. (This is the affect of either multiplying both sides by -1 or dividing both sides by -1.)
x=-9

Answer 7

You need to add x and 3 to both sides. This will make the equation, x+9=0. x is equal to -9. I love algebra.

Answer 8

add 3 to both sides and you get -x=9 then divide both sides by -1 and get x=-9

Answer 9

-x-3=6
+3 +3
------------
-x=9
Make x positive:
-x/-1=9/-1
x=-9