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anonymous
 one year ago
What values of x make the two expressions below equal?
(2x+1)(x7)/11(x7)= 2x+1/11
A. All real numbers
B. All real numbers except 1/2
C. All real numbers except 7
D. All real numbers except 1/2 and 7
anonymous
 one year ago
What values of x make the two expressions below equal? (2x+1)(x7)/11(x7)= 2x+1/11 A. All real numbers B. All real numbers except 1/2 C. All real numbers except 7 D. All real numbers except 1/2 and 7

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0The best way to go about this problem is for you to plug in the numbers where stated "except"" to see if they work.

DanJS
 one year ago
Best ResponseYou've already chosen the best response.1\[\frac{ (2x+1)(x7) }{ 11(x7) }=\frac{ 2x+1 }{ 11 }\] is that it

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yes that's what I wrote

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0If not A, but if they do you'd be picking one of the B to D. Simple right?

DanJS
 one year ago
Best ResponseYou've already chosen the best response.1group the entire numerator in a bra kets

DanJS
 one year ago
Best ResponseYou've already chosen the best response.1simplify, (x7) can cancel in the first, but you must keep in mind that x cant be 7, it will make the original expression undefined

DanJS
 one year ago
Best ResponseYou've already chosen the best response.1then both are over 11, and you can multiply both sides by 11 to cancel those... left with 2x+1 = 2x+1 , true, all reals

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so if you cancel x7 out, top and bottom you're left with (2x+1)11 right?

DanJS
 one year ago
Best ResponseYou've already chosen the best response.1yes, \[\frac{ 2x+1 }{ 11 }= \frac{ 2x+1 }{ 11 }\]

DanJS
 one year ago
Best ResponseYou've already chosen the best response.1It is like saying, 1 = 1, True statement, any value for x is possible there

DanJS
 one year ago
Best ResponseYou've already chosen the best response.1remember you canceled out (x7) in the denominator though, so x7 can not be zero

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0same exact thing on both sides except the left one has parentheses

DanJS
 one year ago
Best ResponseYou've already chosen the best response.1right, if you have the same things on both sides, then the variable can be any real number. Except here it can not be 7 since you cancelled out x7 in the denominator, you cant have x7=0 or x=7

DanJS
 one year ago
Best ResponseYou've already chosen the best response.1zero in the bottom is bad

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so it would be all real numbers except 7?

DanJS
 one year ago
Best ResponseYou've already chosen the best response.1i forget what they call those solutions x=7, some term

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0did not know that myself haha

DanJS
 one year ago
Best ResponseYou've already chosen the best response.1you can check, put x=7 and see if both sides are the same...

DanJS
 one year ago
Best ResponseYou've already chosen the best response.1extraneous solutions, just popped into my head, check that definition out if it sounds familiar.
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