2007-01-25 09:12:09 · 7 answers · asked by Ibukun-olu D 1 in Science & Mathematics ➔ Mathematics
-4x-5=2x + 7
6x=-12
x=-2
2007-01-25 09:48:35 · answer #1 · answered by wesnaw1 5 · 0⤊ 0⤋
First: eliminate the parenthesis > use distribution - multiply the outer terms and signs with the terms in the parenthesis....
2 - (4x) - (7) = 3 + 2(x) + 2(2)
2 - 4x - 7 = 3 + 2x + 4
*Combine "like" terms...
2 - 7 - 4x = 3 + 4 + 2x
- 5 - 4x = 7 + 2x
Sec: add "5" to both sides....
- 5 + 5 - 4x = 7 + 2x + 5
- 4x = 12 + 2x
Third: subtract "2x" from both sides...
- 4x - 2x = 12 + 2x - 2x
- 6x = 12
*Isolate "x" on one side > divide both terms by "-6"...
-6x/-6 = 12/-6
x = - 2
2007-01-25 09:25:00 · answer #2 · answered by ♪♥Annie♥♪ 6 · 0⤊ 0⤋
2-4x-7=3+2x+4(remove the brackets)
-5-4x=7+2x
-5-7=2x+4x(collect the terms)
-12=6x
=12/6=x
-2=x
x=-2
2007-01-28 18:36:24 · answer #3 · answered by srirad 2 · 0⤊ 0⤋
x=-2
2007-01-25 09:18:27 · answer #4 · answered by Shawn Sizzle 2 · 0⤊ 0⤋
2-(4x+7)= 3+2(x+2)
2-4x-7=3+2x+4
-4x-5=2x+7
-5=6x+7
-12=6x
-12/6=x
x=-2
2007-01-25 09:52:40 · answer #5 · answered by Dani Jo W 1 · 0⤊ 0⤋
2-(4x+7)=3+2(x+2)
2-4x-7=3+2x+4
-5=7+6x
-12=6x
-2=x
2007-01-25 09:28:12 · answer #6 · answered by Pam L 1 · 0⤊ 0⤋
2-(4x+7)=3+2(x+2)
2-4x-7-=3+2x+4
-5-4x=7+2x
-12=6x
-2=x
2007-01-25 09:28:17 · answer #7 · answered by Anonymous · 0⤊ 0⤋