Question
3 4 4 2 Solve for x and y:+=1; += x x y 11 12
Solution

3
+
x
4

y
=1
4 2 11
+=
x y12
4 22
+ =
8
Multiplying (ii) by 2
→
...(iii)
x
&
12
Subtracting (i) and (ii) =
10
x = 5x12 = 6
X
=
10
Substituting x=6 in (i)
=
.
y=8.
7
6 y sondy=8
Hence, x=6 and y=8