Question

Pls do #13 pls pls pls

Answer 1

y = 7

Simplifying numerators/ denominators

$\frac{1+3}{-1+3}$ = $\frac{y-1}{2+1}$

$\frac{4}{2}$ = $\frac{y-1}{3}$

2 = $\frac{y-1}{3}$ (cross- multiply )

y - 1 = 6 ( add 1 to both sides )

y = 7