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What equation has an infinite number of solutions​

 

 Feb 5, 2021
 #1
avatar+118470 
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Here's  the  key

 

Simplify  both sides

 

If  one side  = the other side, we have infinite solutions

 

(Hint : look at the  first one)

 

 

cool cool cool

 Feb 5, 2021
 #2
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An equation can have infinite solutions if the variables go away and you are left with something like "5 = 5" or "7 = 7".

 Feb 5, 2021
 #3
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I believe that the first equation leaves you with -7 = -7 for any number "n". (This has infinite solutions)

 

The second equation leaves: -15 = 10. No value of "n" works for this. (This has no solutions)

 

The third equation leaves: -3 = 10. (This also has no solutions)

 

The last equation leaves you with n = 2. (This is only one solution.)

 Feb 5, 2021

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