Question

a) x + y = 2
x- y = 0
b)2x + 3y =38
3x - 2y = 18

Answer 1

a) x + y = 2

x- y = 0
x= 2 -y

2 -y -y = 0
2 -2y = 0
-2y = -2 . (-1)
y=1

x= 2-1
x=1

b) 2x + 3y =38
3x - 2y = 18