what is x=?
2007-11-20 10:22:05 · 14 answers · asked by julie q 1 in Science & Mathematics ➔ Mathematics
2x + 3 = 9
2x = 6
x = 3
2007-11-24 08:09:50 · answer #1 · answered by Como 7 · 0⤊ 0⤋
3
2007-11-20 10:35:23 · answer #2 · answered by Anonymous · 0⤊ 0⤋
2x +3 = 9
Subtract 3 from both sides to get 2x by itself
2x +3 -3 = 9-3
2x = 6
Solve for x:
2x / 2 = 6 / 2
x = 3
Check by plugging 3 in for x:
2(3) +3 = 9
6+3 = 9
9=9
TRUE
X=3
2007-11-20 10:35:32 · answer #3 · answered by tammi62505 2 · 0⤊ 0⤋
2x+3=9
2x=9-3 (bring 3 over to the right, becomes -3)
2x=6 (how many times does 2 go into 6?)
x=3 (2 goes into 6 3 times)
2007-11-20 10:29:57 · answer #4 · answered by ♥fefe 5 · 1⤊ 0⤋
2x + 3 = 9
subtract 3 from both sides
2x = 6
divide both sides by 2
x = 6/2
simplify
x = 3
2007-11-20 10:26:10 · answer #5 · answered by battleship potemkin AM 6 · 1⤊ 0⤋
6
2007-11-20 10:25:38 · answer #6 · answered by Anonymous · 1⤊ 0⤋
2x+3=9
-3 -3
2x=6
x=3
2007-11-20 10:26:21 · answer #7 · answered by --- orange --- 3 · 1⤊ 0⤋
2x+3=9 x=3
2x+3=9
-3 -3
2x=6
Divide by 2 on each side
x=3
2007-11-20 10:35:09 · answer #8 · answered by Wendy G 2 · 0⤊ 0⤋
x=3
Here's how to do it...
2x+3 =9
2x+3-3=9-3
2x=9-3
2x+6
divide 2 by both sides..
2x/2=6/2
x=6/2
x=3
2007-11-20 10:27:06 · answer #9 · answered by smiffytheninja 2 · 1⤊ 0⤋
X=3
2X+3=9
-3 -3
2X=6
X=3
2007-11-20 10:31:41 · answer #10 · answered by Anonymous · 0⤊ 0⤋