3-2(2+x)- 5x
and show me how.. i keep on getting -1+3x but it's wrong
2006-07-10 22:16:44 · 22 answers · asked by :) 2 in Science & Mathematics ➔ Mathematics
you all are still wrong..
the multiple choice answers are
2-4x
1+2x
-7x-1
-7x-7
2006-07-10 22:21:09 · update #1
my bad i didnt know -1-7x is the same as -7x-1 i got that answer too the 2nd time i tried it lmao okay tanx everybody ill give 10 pts to whoever gave the best one tomorw
2006-07-10 22:26:35 · update #2
There are two things:
Simplify:
3 -2(2+x) -5x
3 -4-2x -5x
-1 -7x is the Answer
Solve the Eq:
3 -2(2+x) -5x =0
3 -4 -7x=0
-7x=1
x= -1/7
take any of the answer as required by you.
2006-07-10 22:26:18 · answer #1 · answered by ? 2 · 2⤊ 2⤋
the correct answer is: -1 - 7x
You're not distributing the -2 correctly and ignoring the fact that the 5x is a negative 5x.
3 - 2 (2 + x) - 5x = 3 - 4 -2x - 5x
= combine like terms 3 - 4 = -1
-2x - 5x = -7x
final answer = -1 - 7x
2006-07-11 05:26:49 · answer #2 · answered by jhawkin74 1 · 0⤊ 0⤋
3-2(2+x)- 5x
first you have to multiple the -2 through the parenthesis and only in the parenthesis
so that would make it
3 - 4 - 2X - 5X
now combine the like terms so the ones with X's and the ones without
-1 - 7X
2006-07-11 05:23:25 · answer #3 · answered by anewcreation_84 2 · 0⤊ 0⤋
the correct answer is: -1 - 7x
.
3 - 2 (2 + x) - 5x = 3 - 4 -2x - 5x
= combine like terms 3 - 4 = -1
-2x - 5x = -7x
final answer = -1 - 7x
2006-07-11 05:31:41 · answer #4 · answered by Miss LaStrange 5 · 0⤊ 0⤋
3 - 2 (2+x) - 5x
=3 - 4 - 2x - 5x
= -1 -7x
2006-07-11 05:19:15 · answer #5 · answered by Maninder 2 · 0⤊ 0⤋
Here's the simplified expression
=3-2(2+x)-5x
=3-4-2x-5x
= -1-7x
you got it wrong because you instead of adding -2x-5x and putting negative sign you subtracted it.
2006-07-11 05:21:22 · answer #6 · answered by Eshwar 5 · 0⤊ 0⤋
3-(4+2x)-5x hint: (multiply through 4+2x by a -1)
3-4-2x-5x
-1-7x
2006-07-11 05:25:25 · answer #7 · answered by dude 2 · 0⤊ 0⤋
3-2(2+x)- 5x
=3-4-2x-5x
=-1-7x
2006-07-11 05:42:07 · answer #8 · answered by Anonymous · 0⤊ 0⤋
= 3-4-2x-5x
= -1-7x
you keep on getting +3x , maybe because you add -2x and use +5x
2006-07-11 05:25:21 · answer #9 · answered by czaroma 2 · 0⤊ 0⤋
3-4-2x-5x=0
-1-7x=0
-7x=1
x=-1/7
2006-07-11 05:20:03 · answer #10 · answered by druid 7 · 0⤊ 0⤋