2006-12-11 23:08:12 · 8 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
7x-3-2x=2(x+3)
5x - 3 = 2x + 6
3x = 9
x = 3
2006-12-11 23:10:00 · answer #1 · answered by anton3s 3 · 0⤊ 0⤋
7x - 3 - 2x = 2(x + 3)
5x - 3 = 2x + 6
5x - 3 - 2x = 2x + 6 - 2x
3x - 3 = 6
3x - 3 + 3 = 6 + 3
3x = 9
3x / 3 = 9 / 3
x = 3
The answer is x = 3
Insert the x value into the equation
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7x - 3 - 2x = 2(x + 3)
7(3) - 3 - 2(3) = 2(3 + 3)
21 - 3 - 6 = 2(6)
21 - 9 = 12
12 = 12
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2006-12-11 23:19:09 · answer #2 · answered by SAMUEL D 7 · 0⤊ 0⤋
I'm not too happy solving maths trivia like yours, but for the sake of 2 points, here you are:
7x - 3 - 2x = 2x + 6
5x - 2x = 6 + 3
3x = 9
x = 3
2006-12-11 23:13:33 · answer #3 · answered by Paleologus 3 · 0⤊ 0⤋
Aww, come on.
If you are still in school, you should have more brains that half the people here!
Do your own homework!
That said, I can't resist a simple math equation.
7x-3-2x=2(x+3)
5x-2x=6+3
x=9/3=3
2006-12-11 23:16:03 · answer #4 · answered by xxon_23 7 · 0⤊ 0⤋
7x-3-2x=2(x+3)
5x-3=2x+6
5x-3-2x=2x-2x+6
3x-3=6
3x-3+3=6+3
3x=9
x=3
That is showing your work, oppose to just the answer by the way!
2006-12-11 23:12:44 · answer #5 · answered by ? 1 · 1⤊ 0⤋
develop
7x-3-2x = 2x+6
5x-3 = 2x+6
3x=9
x=3
it works . both side are 12
2006-12-11 23:26:56 · answer #6 · answered by maussy 7 · 0⤊ 0⤋
7x-3-2x=2(x+3)
7x-3-2x=2x+6
7x-2x-2x=6+3
3x=9
x=3
2006-12-11 23:53:07 · answer #7 · answered by Saphira 3 · 0⤊ 0⤋
7x-3-2x=2x+6
5x-3=2x+6
5x-2x=6+3
3x=9
x=9/3
x=3
:)
2006-12-11 23:25:37 · answer #8 · answered by Anonymous · 0⤊ 0⤋