Using the cross multiplication method, which of the following is the solution to 21/(x+4) = 7/(x+2)?
2 answers:
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we are given
Firstly, we will find all possible factors of 144
we can also write as
now, we can put exponent to over entire term
now, we can replace 144
now, sqrt will get cancelled with square
and we get
now, we can simplify it
.............Answer