Question

x-(y +1)= 3
y+(x+3)=4​

Answer 1

$paso 1\\x-y-1=3\\y+x+3=4\\\\paso2\\x-y=4\\x+y=1\\\\paso3\\x=4+y\\x+y=1\\\\paso4\\sustituimos\\4+y+y=1\\\\resolvemos\\2y=-3\\y=\frac{-3}{2} \\\\sutituimos\\x-(\frac{3}{2})= 1\\x=1+\frac{3}{2}\\x=\frac{5}{2}\\ \\resultados\\y=\frac{-3}{2}\\\\x=\frac{5}{2}$