-3x = 2x + 15
x = 3
x = -15
x = -3
x = 15
2006-11-15 04:52:08 · 20 answers · asked by 1234 1 1 in Science & Mathematics ➔ Mathematics
- 5x=15
x= -3
2006-11-15 04:53:46 · answer #1 · answered by Anonymous · 5⤊ 0⤋
You should be able to solve this very easily.
Put the x from the left with the x on the right.
Like this:
-3x = 2x +15 (to figure out X, we have to have all the xs on one side of the equation. So we subtract 2x from both sides)
-3x -2x = 2x + 15 - 2x
This gives us
-5x = 15
Divide by five.
-x = 3
Then divide by negative 1 (because -x is the same as -1 times x)
-x/-1 = 3/-1
x = -3
2006-11-15 05:01:18 · answer #2 · answered by Brian L 7 · 0⤊ 0⤋
-3x = 2x + 15
-3x - 2x = 15
-5x = 15
x= 15 / -5
x = -3.
because:
-3(-3) = 2(-3) + 15
9 = 9.
2006-11-15 05:27:55 · answer #3 · answered by Anonymous · 0⤊ 0⤋
x = -3
2006-11-15 05:30:31 · answer #4 · answered by me 1 · 0⤊ 0⤋
x=-3
2006-11-15 05:07:08 · answer #5 · answered by Total_Pineapple_forever 2 · 0⤊ 0⤋
x= -3
2006-11-15 05:00:47 · answer #6 · answered by Anonymous · 0⤊ 0⤋
x= -3
2006-11-15 04:55:36 · answer #7 · answered by camandizmom 2 · 0⤊ 0⤋
x=-3
2006-11-15 04:54:09 · answer #8 · answered by psycho 3 · 1⤊ 0⤋
-3x = 2x + 15 subtract 2x from each side
-5x=15 divide by -5
x=-3
2006-11-15 04:57:26 · answer #9 · answered by yupchagee 7 · 0⤊ 0⤋
-3x = 2x + 15
-3x - 2x = -2x + 2x + 15
-5x = 15
-5x/-5 = 15/-5
x = -3
2006-11-15 04:54:27 · answer #10 · answered by starryeyedhaze 3 · 1⤊ 0⤋
x=-15
2006-11-15 04:55:56 · answer #11 · answered by openpsychy 6 · 0⤊ 0⤋