Question

the value of x is 54/7 but how ??? find​

Answer 1

Answer:

It is very simple friend.

You have done substitution method in which you have found x = 10 + 2y and you have found the value of y as $\frac{ - 8}{7}$

$x = 10 + 2y \\ x = 10 + 2( \frac{ - 8}{7} ) \\ x = 10 - \frac{16}{7} \\ by \: taking \: lcm \\ x = \frac{70 - 16}{7} \\ x = \frac{54}{7}$

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Answer 2

Answer:

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