Solve 4(x – 9) + 2 = 12x + 14............?

2009-10-17 7:58 am
Solve 4(x – 9) + 2 = 12x + 14.

A. –6
B. 6
C. –21/8
D. identity

i got A ?

回答 (9)

2009-10-17 10:04 am
✔ 最佳答案
4(x - 9) + 2 = 12x + 14
4(x) - 4(9) + 2 = 12x + 14
4x - 36 + 2 = 12x + 14
4x - 34 = 12x + 14
4x - 12x = 34 + 14
-8x = 48
x = 48/(-8)
x = -6
(answer A)
2016-12-18 8:28 am
e^lnx will cancel so purely 3 is left, and ln^ex^2 is likewise going to cancel because of the fact ln and e are the two opposite of one yet another and that they cancle one yet another so which you're purely left with 3+x^2
2016-12-12 10:27 pm
e^lnx will cancel so in basic terms 3 is left, and ln^ex^2 is likewise going to cancel by way of fact ln and e are the two opposite of one yet another and that they cancle one yet another so which you're in basic terms left with 3+x^2
2009-10-18 7:21 am
darling you're right again..sorry for the last questions that i ddnt answer coz im a little busy

4x-36+2=12x+14
8x=-48

x=-6
2009-10-17 8:16 am
I can do this stuff in my head, it is (A)
so your answer is right!
2009-10-17 8:15 am
4x - 34 = 12x + 14

- 48 = 8x

x = - 6

OPTION A
2009-10-17 8:10 am
4(x-9)+2=12x+14
=4x-36+2=12x+14
12x-4x=-36+2-14
8x=-48
x=-6
the answer is letter A..
2009-10-17 8:10 am
4x - 36 + 2 = 12x + 14

-34 = 8x + 14
-48 = 8x

x = - (48/8) = -6.

Answer A.
2009-10-17 8:05 am
Solve 4(x – 9) + 2 = 12x + 14.

4(x – 9) + 2 = 12x + 14
4x – 36 + 2 = 12x + 14
4x – 12x = 14 + 36 – 2
–8x = 48
x = 48/–8 = –6

A. –6 .................... correct answer
B. 6
C. –21/8
D. identity


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