Question

if 1/7+X/7=13,the value of,the value of X is​

Answer 1

$\frac{1}{7} + \frac{x}{7} = 13$

$\frac{x + 1}{7} = 13$

$x + 1 = 13 \times 7$

$x + 1 = 91$

$x = 90$