2007-11-25 10:47:27 · 13 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
x + 3 - 2x = 6
x - 2x + 3 = 6
- x + 3 = 6
First: solve for "x" - subtract 3 from both sides (when you move a term to the opposite side, always use the opposite sign).
- x + 3 - 3 = 6 - 3
- x = 6 - 3
- x = 3
*Rule - the variable (letter) can't be negative...change signs on both sides.
x = - 3
2007-11-25 12:11:12 · answer #1 · answered by ♪♥Annie♥♪ 6 · 0⤊ 0⤋
x + (3-2x) = 6
x + 3 - 2x = 6
-x +3 = 6
-x = 3
x = -3
2007-11-25 18:50:40 · answer #2 · answered by Anonymous · 0⤊ 2⤋
x=-3
2007-11-25 18:55:10 · answer #3 · answered by alyssa 4 · 0⤊ 2⤋
x+3-2x=6
-x+3=6
-x+3-3=6-3
-x=3
x=-3
2007-11-25 18:50:38 · answer #4 · answered by Dave aka Spider Monkey 7 · 0⤊ 2⤋
x + (3 -- 2x) = 6
=> --x = 3
=> x = --3
2007-11-25 18:51:38 · answer #5 · answered by sv 7 · 0⤊ 2⤋
well x+3-2x=6 so,
minus the 3 from the other side: x-2x=3
1-2=-1 so it becomes -1x or -x
-x=3 or x=-3
2007-11-25 18:51:36 · answer #6 · answered by Chris 2 · 0⤊ 1⤋
x+3-2x=6
-x=6-3
-x=3
x= -3
2007-11-25 18:50:12 · answer #7 · answered by junjun 1 · 0⤊ 2⤋
x+(3-2x) =6
x+3 -2x=6
-x=3
x=-3
I'm not sure why the guy above said it makes it false???
-3+ (3-2(-3))=6
-3+3 +6=6?
6=6 YUP!! SO -3 makes the equation true :)
2007-11-25 18:51:13 · answer #8 · answered by Anonymous · 0⤊ 2⤋
x +(3-2x)=6
x+3-2x=6
-x+3=6
-x=3
x=-3
2007-11-25 18:49:35 · answer #9 · answered by Bollywood Masti 4 · 0⤊ 3⤋
-3
2007-11-25 18:50:11 · answer #10 · answered by Anonymous · 0⤊ 3⤋