Question

x - 9 = 8

y-5 = 20

x+3=1

y +4= -8​

Answer 1

$x-9=8\\x=8+9\\x=17$

$y-5=20\\y=20+5\\y=25$

$x+3=1\\x=1-3\\x=-2$

$y+4=-8\\y=-8-4\\y=-12$