Question

×+y=3
×-y=3 mim ajudar

Answer 1

x + y = 3
x - y = 3

2x = 6
x = 6/2
x = 3

Answer 2

y= 3-x
x= 3+y

x= 3+3-x
x+x= 6
2x= 6
x= 3

y= 3-3
y=0