There should be two answers, I solved it and think they are: x= -4/5 and 2.
2007-06-25 17:53:06 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
hmmm.. well, i think the 1st thing you should do is remove the brackets, and to do so, you need to put a 1 in front of the brackets eg see it as 1 (5x-3) + 4 = 11. then it should look like 5x-3+4 = 11. collecting like terms would get it down to 5x+1 = 11 (as -3+4= 1). and then subtract 1 on both sides to get rid of the 1 would get it down to 5x = 10. and from there divide it by 5 on both sides, and the answer in this case would mean x = 2. to get the other answer, instead of removing the brackets, leave them. (5x-3) = 7. removing the brackets would be 5x-3 = -7. then add 3 on both sides and you get 5x = -4 (as -7+3). then you divide both sides by 5. therefore, x = -4/5
2007-06-25 18:00:51 · answer #1 · answered by kristyb872001 6 · 0⤊ 0⤋
l 5x - 3 l + 4 = 11
subtract 4 for both sides
l 5x - 3 l = 7
Two equations
5x - 3 = 7 and 5x - 3 = -7
solve each one individually
5x - 3 = 7
5x = 10
x = 2
5x - 3 = -7
5x = -4
x = -4/5
you are correct!
2007-06-26 00:56:54 · answer #2 · answered by 7 · 0⤊ 0⤋
My answer:
[5x-3] + 4 = 11
5x - 3 = 11 - 4
5x = 7 + 3
x = 10/5
x = 2
Lol I hope it's the correct answer...
2007-06-26 01:00:27 · answer #3 · answered by general_ashworm 2 · 0⤊ 0⤋
|5x-3| + 4 = 11
5x + 3 + 4 =11
5x + 7 = 11
5x + 7-7=11-7
5x=4
5x/5=4/5
x=4/5
2007-06-26 01:02:55 · answer #4 · answered by Anonymous · 0⤊ 0⤋
yup
|5x-3|+4=11
|5x-3|=7
5x=10
x=2
|5x-3|=7
5x-3=-7
5x=-4
x=-4/5
2007-06-26 01:01:39 · answer #5 · answered by ydnaceromjon 1 · 0⤊ 0⤋
I5x-3l=7
5x-3=7 or 5x-3= -7
x=2 or x= -4/5
...so u are correct!
2007-06-26 01:00:39 · answer #6 · answered by DBSII 3 · 0⤊ 0⤋
|5x - 3| = 7
Leads to:-
Answer a) 5x - 3 = 7
Answer b) 5x - 3 = - 7
Answer a)
5x = 10
x = 2
Answer b)
5x = - 4
x = - 4 / 5
2007-06-28 05:06:13 · answer #7 · answered by Como 7 · 0⤊ 0⤋
|5X-3|=7
5X-3=+-7
5X= 3+-7
5X=10 or 5X = -4
X=2 or X=-4/5
Yes, you got the right answer
2007-06-26 00:58:50 · answer #8 · answered by Anonymous · 0⤊ 0⤋
those are the correct answers. Good Job
2007-06-26 00:57:13 · answer #9 · answered by Poetland 6 · 0⤊ 0⤋