2006-08-13 10:23:01 · 16 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
2x = 9-3 =>
2x = 6 =>
x = 6 / 2 =>
x= 3
2006-08-13 10:38:43 · answer #1 · answered by Reza Shahran 3 · 0⤊ 0⤋
2x + 3 = 9 => 2x = 6 => x = 3. To check: 2 * (3) + 3 = 9 => 6 + 3 = 9.
2006-08-13 12:43:12 · answer #2 · answered by flyfisher_20750 3 · 0⤊ 0⤋
2x + 3 = 9
2x=6
x=3
2006-08-13 10:34:23 · answer #3 · answered by RT 2 · 0⤊ 0⤋
x=3
2006-08-13 10:28:14 · answer #4 · answered by ToTheEnd 2 · 0⤊ 0⤋
rule # 1: what you do to one side of the equation, do to the other. This is the most important rule you ever need to know.
Given: 2x + 3 = 9
subtract 3 from both sides as such:
2x + 3 - 3 = 9 - 3
2x = 6
now multiply both sides by 1/2, as such:
1/2(2x) = 1/2(6)
x = 3
Therefore x equals 3
2006-08-13 10:38:35 · answer #5 · answered by Paul W 2 · 0⤊ 0⤋
First, subtract 3 from both sides and you get: 2x = 6.
Next, divide by 2 on each side and you get x = 3.
You can verify by plugging in 3: 2(3) + 3 = 9.
The answer is: x = 3
2006-08-13 10:27:40 · answer #6 · answered by Elim 5 · 0⤊ 0⤋
By simple algebraic manipulation x = 3
minus 3 from both sides, the divide by 2
hence, 9-3=6
6/2=3
Therefore, concluding in the solution for this linear equation to be 3.
2006-08-13 13:29:30 · answer #7 · answered by hzdformlessfear 1 · 0⤊ 0⤋
1) 2x=9-3
2) 2x=6
3) x=6/2
4) x=3
2006-08-15 13:33:06 · answer #8 · answered by wjlkh 2 · 0⤊ 0⤋
2x+3=9
2x+3 = 9-3
2x = 6
2x : 2= 6 : 2
x = 3
2006-08-13 13:15:35 · answer #9 · answered by missybitsy 1 · 0⤊ 0⤋
You need to solve it like this....
2x+3=9
2x = 9-3
2x = 6
x = 6/2
x = 3
2006-08-13 10:28:35 · answer #10 · answered by Julia L. 6 · 0⤊ 0⤋