Answer:
(9 - 4 x)/(x (2 x - 4))
Step-by-step explanation:
Simplify the following:
1/(2 x^2 - 4 x) - 2/x
Put each term in 1/(2 x^2 - 4 x) - 2/x over the common denominator x (2 x - 4): 1/(2 x^2 - 4 x) - 2/x = ((x (2 x - 4))/(2 x^2 - 4 x))/(x (2 x - 4)) - (2 (2 x - 4))/(x (2 x - 4)):
((x (2 x - 4))/(2 x^2 - 4 x))/(x (2 x - 4)) - (2 (2 x - 4))/(x (2 x - 4))
A common factor of 2 x - 4 and 2 x^2 - 4 x is 2 x - 4, so (x (2 x - 4))/(2 x^2 - 4 x) = (x (2 x - 4))/(x (2 x - 4)):
((x (2 x - 4))/(x (2 x - 4)))/(x (2 x - 4)) - (2 (2 x - 4))/(x (2 x - 4))
(x (2 x - 4))/(x (2 x - 4)) = 1:
1/(x (2 x - 4)) - (2 (2 x - 4))/(x (2 x - 4))
1/(x (2 x - 4)) - (2 (2 x - 4))/(x (2 x - 4)) = (1 - 2 (2 x - 4))/(x (2 x - 4)):
(1 - 2 (2 x - 4))/(x (2 x - 4))
-2 (2 x - 4) = 8 - 4 x:
(8 - 4 x + 1)/(x (2 x - 4))
Add like terms. 1 + 8 = 9:
Answer: (9 - 4 x)/(x (2 x - 4))
Answer:
75a
Step-by-step explanation:
2(vas)
2(35a)
75a
Hope this helps plz hit the crown :D
Answer:
X=-3, y=-4, z=-5
Step-by-step explanation:
X-4y+3z=-2......(1)
2x-y+4z=-22....(2)
3x-3y+4z=-17.....(3)
-2(1)+(2) and -3(1)+(3) we get:
7y-2z=-18....(4)
9y-5z=-11.....(5)
Now 5(4)-2(5) we get:
17y=-68 so
y=-4
Put y=-4 in (4) we have:
-28-2z=-18, then 2z=-10, so we have:
z=-5
Now put y=-4 and z=-5 in (1) we get:
x+16-15=-2, then
X=-3
Answer:
1 dollar
Step-by-step explanation:
.5% decrease anything times a number less than 1 decreases that number
