1) x - (2x - 8) = 3x - 2(x + 5)
2) x - (2x - 6) = 3x - 2(x + 5)
Please provide all the work.
2006-12-04 06:20:45 · 7 answers · asked by katlover118 2 in Science & Mathematics ➔ Mathematics
1) x - (2x - 8) = 3x - 2(x + 5)
So x - 2x + 8 = 3x - 2x - 10
ie -x + 8 = x - 10
So -x + x + 8 + 10 = x + x - 10 + 10
ie 18 = 2x
So x = 9
2) x - (2x - 6) = 3x - 2(x + 5)
ie x - 2x + 6 = 3x -2x - 10
ie -x + 6 = x - 10
So -x + x + 6 + 10 = x + x - 10 + 10
ie 16 = 2x
So x = 8
2006-12-04 06:26:03 · answer #1 · answered by Wal C 6 · 1⤊ 1⤋
1. X-2x+8=3x-2x-10
-X+8=x-10
-2X=-18
2X=18
X=9
2. X-2X+6=3X-2X-10
-X+6=X-10
-2X=-16
2X=16
X=8
2006-12-04 06:32:28 · answer #2 · answered by Tony T 4 · 1⤊ 0⤋
x -(2x - 8) = 3x - 2(x + 5)
x -2x + 8 = 3x - 2x - 10
-x + 8 = x - 10
- x + 8 + x = x - 10 + x
8 = 2x - 10
8 + 10 = 2x
18 = 2x
18/2 = 2x/2
9 = x
The answer is x = 9
- - - - - - -- - - - - - - - - - -
x - (2x - 6) = 3x - 2(x + 5)
x -2x + 6 = 3x - 2x - 10
- x + 6 = x - 10
- x + 6 + x = x - 10 + x
6 = 2x - 10
6 + 10 = 2x - 10 + 10
16 = 2x
16/2 = 2x/2
8 = x
The answer is x = 8
- - - - - -s-
2006-12-04 07:11:18 · answer #3 · answered by SAMUEL D 7 · 1⤊ 0⤋
1)
x - (2x - 8) = 3x - 2(x + 5)
x - 2x + 8 = 3x - 2x - 10
x = 3x - 18
2x = 18
x = 9
2)
x - (2x - 6) = 3x - 2(x + 5)
x - 2x + 6 = 3x - 2x - 10
x + 6 = 3x - 10
2x = 16
x = 8
₢
2006-12-04 06:44:07 · answer #4 · answered by Luiz S 7 · 1⤊ 0⤋
1) x - (2x - 8) = 3x - 2(x + 5)
....x - 2x + 8 = 3x - 2x - 10
...-x + 8 = x - 10
... 18 = 2x
.. 9 = x
2) almost exactly like it.
2006-12-04 06:27:33 · answer #5 · answered by Philo 7 · 0⤊ 0⤋
http://www.algebrahelp.com/calculators/equation/
this will give you the work
1) x=9
2) x=8
2006-12-04 06:27:45 · answer #6 · answered by Melissa R 2 · 0⤊ 0⤋
No, that's your job. Look in your textbook.
2006-12-04 06:27:55 · answer #7 · answered by parsonsel 6 · 0⤊ 0⤋