Question

Solve: $7y-x=8,$ when $x=\frac{7+7y}{6}$

• A. $\frac{9}{7}$
• B. $\frac{11}{7}$
• C. $\frac{5}{7}$
• D. $\frac{9}{5}$

Answer 1

The correct option is B $\frac{11}{7}$

$7y-x=8$

Placing the value of $x=\frac{7+7y}{6}$ in the above equation, we get,

$7y-\frac{7+7y}{6}=8$

$7y-\frac{7}{6}-\frac{7y}{6}=8$

$\frac{35}{6}y=\frac{55}{6}$

$y=\frac{55}{35}$

$\Rightarrow y=\frac{11}{7}$