Question

The value of x in the equation $\frac{3}{7}+x=\frac{17}{7}$is :

• A. 1
• B. 2
• C. 3
• D. 4

Answer 1

The correct option is B 2

$\frac{3}{7}+x=\frac{17}{7}$
$\Rightarrow x+\frac{3}{7}-\frac{3}{7}=\frac{17}{7}-\frac{3}{7}$ [Subtracting $\frac{3}{7}$ on both sides]
$\Rightarrow x=\frac{17-3}{7}$
$\Rightarrow x=\frac{14}{7}$
$\Rightarrow x=2$