B 777-200 ER
Oct 13, 2008, 02:09 PM
3+4x = 3x-2
=> 4x-3x = -2 - 3
=> x = -5
katringette22
Oct 13, 2008, 02:25 PM
For those ones you put terms that look alike together
mathwiz3502
Oct 4, 2009, 12:38 PM
3+4x=3x+2
subtract 3 (addition is communitive)
4x=3x-1
subtraact 3x
x=-1
check it:
3+4(-1)=3(-1)+2
3-4=2-3
-1=-1