Solve the following for x: 3 – (x +- 4) = 2x – 6 + 5x
2007-03-08 13:13:48 · 4 answers · asked by Landy J 1 in Education & Reference ➔ Homework Help
http://cstl.syr.edu/FIPSE/Algebra/Unit3/combine.htm
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2007-03-08 13:18:21 · answer #1 · answered by Sky B 3 · 0⤊ 0⤋
first multiply the negative sign into the partentheses
1. 3-x+4=2x-6+5x
then combine like terms (xs with xs and numbers with numbers) on each side of the equals sign.
2. 7-x=7x-6
thirdly, get all the xs on one side of the equation and the numbers on the other.
* to move the x you need to add x to both sides
3. 7-x=7x-6
+x +x
---------------
7=8x-6
*to move the numbers to the opposite side from the xs you need to add 6 to both sides
7=8x-6
+6 +6
------------
13=8x
to get x alone divide both sides by 8
x= 13/8
2007-03-08 21:25:32 · answer #2 · answered by soxnut726 2 · 0⤊ 0⤋
3-x+4=7x-6
+x +x
7=8x-6
+6 +6
14=8x
14/8=8x/8
1.75=x
2007-03-08 21:23:50 · answer #3 · answered by hina s 2 · 0⤊ 0⤋
Landy J Is this your story?
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http://208.109.69.157/funstuff/extra/extra03.asp?strName=Landy_J
2007-03-08 21:27:34 · answer #4 · answered by fhd h 1 · 0⤊ 0⤋