Question

a) x+ y =15
x -y =1

b) 2x + y = 1
x+ 3y = 8

c) 2x + y = 10
-x + 3y = 2

d) 2 (x - 1 ) + y = 7
x + 3y = 2

e) y = 3x
x+ 4y= 26

f) x
--- + y = 7
2
2y - x = 10

Answer 1

x+y=15
+
a) x-y=1
2x+0y=16
2x=16
×=16/2
×=8