can you solve √(3x+6)=5?

2009-06-19 1:33 pm

2 decimal places.....1st answer gets best answer

更新1:

thanks ratty 10 points thank you very much every1 else!!!

回答 (9)

2009-06-19 1:40 pm

✔ 最佳答案

Square both sides to get:

3x+6 = 25

3x = 25 - 6 = 19

x = 19/3 = 6.333 recurring

x = 6.33 correct to 2dp

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2009-06-19 1:40 pm

6.33

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2009-06-19 1:40 pm

i didnt find 19/3 but it gives 6.33

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2009-06-20 2:28 pm

â(3x+6)=5, 3x+6=25, 3x= 19 ,x=19/3=6.33

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2009-06-19 6:12 pm

sqrt(3x+6)=5
3x+6=5^2=25
3x=19
x=6.33 (to 2 d.p.)

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2009-06-19 2:24 pm

â(3x + 6) = 5
3x + 6 = 5^2
3x + 6 = 25
3x = 25 - 6
x = 19/3
x = 6.33 (rounded to two decimal places)

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2009-06-19 2:00 pm

3 x + 6 = 25
3x = 19
x = 6.33

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2009-06-19 1:44 pm

3x+6=5*5
3x+6=25
3x=19
x=19/3
x=6.33

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2009-06-19 1:40 pm

3x+6=25
3x=25-6
3x=19
x=19/3
x=6,3333333333333333333333333333333

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