Question

Its a 7th grade ques, very easy. Please help.

Construct an equation from the information given and then solve it :
9 times a number has 1 subtracted from it. The result is trebled. The answer is the same if you add 7 to twice the number and multiply the result by 7. What is the number ?

Answer 1

plz help directix

Answer 2

directix are u there

Answer 3

shall i give it a shot ?

Answer 4

3(9x-1) = 7(2x+7)

Answer 5

Let x be the number.

9x - 1 is 9 times the number with one subtracted from it.

The result is trebled. (means multiplied by 3)

3*(9x - 1)

The answer is the same if you add 7 to twice the number and multiply the result by 7.

7*(2x + 7)

So, solve this:

3*(9x - 1) = 7*(2x + 7)

Answer 6

so i was right

Answer 7

Right. What did you get for the number?

Answer 8

just a sec

Answer 9

27x - 3 = 14x + 49

Answer 10

27x-14x=52

Answer 11

13x=52

Answer 12

x=52/13
x=4

Answer 13

x=4

Answer 14

am i right ?

Answer 15

That is what I got.

Answer 16

thanks

Answer 17

You are welcome.

Answer 18

i'll take a leave. bye

Answer 19

Me. too.