Solve 4x – 12 = 1/4(16x – 48). ............................?

2009-10-17 7:10 am
Solve 4x – 12 = 1/4(16x – 48).

A. 3
B. identity
C. no solution
D. –3

回答 (11)

2009-10-17 7:16 am
✔ 最佳答案
4x - 12 = 1/4(16x - 48)
16x - 48 = 16x - 48

Answer: B. identity—the number of solutions are infinite and therefore there is no definite solution to this problem.
2009-10-18 2:30 pm
darling its identity..

identity takes all number from 0 to -infinity to infinity
2009-10-17 10:28 pm
C or B identical sides

4x - 12 = 1/4(16x-48)
16x - 48 = 16x - 48
2009-10-17 5:26 pm
4x - 12 = 1/4(16x - 48)
4x - 12 = (16x - 48)/4
4x - 12 = 16x/4 - 48/4
4x - 12 = 4x - 12
(identity)
(answer B)
2009-10-17 3:22 pm
16x - 48 = 16x - 48

OPTION B
2009-10-17 2:24 pm
X can take any value therefore B is the answer.
2009-10-17 2:16 pm
multiply everything by four it will be easier
2009-10-17 2:16 pm
4x-12 = 1/4 (16x-48)

becomes

4x-12 = 4x-12
So, we subtract 4x from both sides gives us:
-12 = -12
and we add 12 to both sides and get
0=0

or

Unlimited solutions. Theoretically, x can be Anything!! That means the answer is B - Identity.
2009-10-17 2:15 pm
1. Expand the whole equation.

4x-12 = 4x-12

move all the x to the left hand side and the numbers to right hand side.
4x-4x=12-12

solve it
0=0

Since it is 0 that means that is totally identity.

Hope it helps.:)
2009-10-17 2:15 pm
x can take any value so answer is
B


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