Have a stack of quarters from the floor to the top of your head OR $225?
2 answers:
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For this case we have the following equation:
Rewriting we have:
We raise both members of the equation to the square:
Rewriting we have:
It's a extraneous solution because equality is not met by substituting x = 10 in the original equation:
Answer:
The solution is:
It's a extraneous solution
Rewriting we have:
We raise both members of the equation to the square:
Rewriting we have:
It's a extraneous solution because equality is not met by substituting x = 10 in the original equation:
Answer:
The solution is:
It's a extraneous solution
Since y is less than x by 7 times 
so in terms of x we write
x=7y
x=7y