Question

$3 \frac{x+1}{2} = 6 \frac{4}{5}$ ; x=?

Answer 1

$\frac{2*3+x+1}{2} = \frac{5*6+4}{5}$

$\frac{6+x+1}{2} = \frac{30+4}{5}$

$\frac{7+x}{2} = \frac{34}{5}$

$5*(7+x)=34*2$

$35+5x=68$

$5x=68-35$

$5x=33$

$x= \frac{33}{5}$