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Solve. 10x – 0.36 = 9(x – 0.61)

2007-05-06 02:36:04 · 13 answers · asked by david v 1 in Science & Mathematics Mathematics

13 answers

10x – 0.36 = 9(x – 0.61)
Expanding the right hand side of the equation, we get:

10x-0.36 = 9x-5.49

Arranging the X terms on one side:

10x-9x = 0.36-5.49

Therefore,

x = -5.13

2007-05-06 02:42:52 · answer #1 · answered by Vytheeshwaran V 4 · 1 0

remember that when doing problems with a variable in it (in this case x) your goal is to isolate that variable.

first distribute the 9 to the x and the -0.61 which is

9x and -5.49 which gives you

10x - 0.36 = 9x - 5.49

then you subtract 9x from each side which cancels the 9x on the right side and gives you 10x-9x which is 1x. which gives you

1x - 0.36 = -5.49

then you add 0.36 to each side which cancels the -0.36 on the left side and isolates the variable 1x, which can be written as x, and gives you -5.13 on the right side. which gives you

x = -5.13 (final answer)

one common mistake that some people make on a problem like this is too not distribute the thing out side the parentheses (9) to both the things in the parentheses (x and -0.61), so be careful to always distribute to both terms inside the parentheses.

2007-05-06 02:57:41 · answer #2 · answered by aj 1 · 0 0

Bring all terms involving x on any one side say left

=>10x - 9x=0.36-9X0.61
=>x=0.36-5.49
=>x=-5.13

2007-05-06 02:39:09 · answer #3 · answered by Anonymous · 2 0

10x – 0.36 - 9(x – 0.61)=0
10x – 0.36 - 9x + 5.49=0
10x-9x+5.49-0.36=0
x+ 5.13=0
x=-5.13

2007-05-06 02:45:03 · answer #4 · answered by iyiogrenci 6 · 0 0

10x-0.36=9(x-0.61)

Expanding it we get
10x-0.36= 9x -5.49

Rearranging this exquation we will get

10x-9x = 0.36-5.49
x= - 5.13

2007-05-06 04:14:58 · answer #5 · answered by v s 2 · 0 1

10x - 0.36 = 9x - 5.49
x = 0.36 - 5.49
x = - 5.13

2007-05-06 02:53:52 · answer #6 · answered by Como 7 · 0 0

10x - 0.36 = 9x - 5.49
x = -5.49 + 0.36
x = -5.13

2007-05-06 03:01:53 · answer #7 · answered by Gina C 2 · 0 0

=>10x - 0.36=9x-5.49
=>10x-9x=-5.49+0.36
=>x=-5.13

2007-05-06 02:44:53 · answer #8 · answered by Anonymous · 0 0

I can't believe anyone would have difficulty with this simple equation. The answer is -5.13.

2007-05-06 02:49:08 · answer #9 · answered by MikeB4257 1 · 0 0

10x-0.36=9x-5.49
10x-9x=0.36-5.49
x=-5.13

greetings

2007-05-06 02:47:41 · answer #10 · answered by sadman 1 · 0 0

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