4 | 8 x - 2 | = 8
Divide both sides by 4
| 8 x - 2 | = 2
± ( 8 x - 2 ) = 2
1.
8 x - 2 = 2
Add 2 to both sides
8 x - 2 + 2 = 2 + 2
8 x = 4
Divide both sides by 8
x = 4 / 8 = 1 / 2
2.
- ( 8 x - 2 ) = 2
- 8 x + 2 = 2
Subtract 2 to both sides
- 8 x + 2 - 2 = 2 - 2
- 8 x = 0
x = 0
4 | 8 x - 2 | = 8
The solutions are:
x = 0 and x = 1 / 2
If 6w-1 over 5 -3w= 12w-16 over 15 mean:
6 w - 1 / 5 - 3 w = 12 w - 16 / 15
then:
3 w - 1 / 5 = 12 w - 16 / 15
Subtract 3 w to both sides
3 w - 1 / 5 - 3 w = 12 w - 16 / 15 - 3 w
- 1 / 5 = 9 w -16 / 15
Add 16 / 15 to both sides
- 1 / 5 + 16 / 15 = 9 w -16 / 15 + 16 / 15
- 1 / 5 + 16 / 15 = 9 w
- 3 / 15 + 16 / 15 = 9 w
13 / 15 = 9 w
Dividey both sides by 9
( 13 / 15 ) / 9 = w
13 / 15 * 9 = w
13 / 135 = w
w = 13 / 135
How do I solve 4|8x-2|=8?
And also 6w-1 over 5 -3w= 12w-16 over 15?
1 answer