Question

Solve for x 2/(7x) = 6/5 5/21 -21/5 21/5 I don't know - 5/21

Answer 1

The answer is:  [A]:  " $\frac{5}{21}$ " .
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Given: 

2/ (7x) = 6/5; 

→  (6/5) * (7x) = 2 ; 

42x / 5 = 2 ; 

42x = 2*5 ; 

42x = 10 ; 

42x /42 = 10/42 ; 

x = 10/42 = (10÷2) / (42÷2) = 5/21 ; 

x = $\frac{5}{21}$ ;

→  which is:  Answer choice:  [A]:  " $\frac{5}{21}$ " .
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