3x y 4 2x 5y 32Solution3x y 4 2x 5y 32 3x y 32 a 4

3x + y = 4 2x + 5y = 32

3x + y = 32 ............(a)

-42x + 5y = 32 ............(b)

eqn (a) is multiply by 5 and then subtract from (b)

15x + 5y = 160

-42x + 5y = 32

- - -

67x + 0 = 128

x = 128/67

putting the value of x for y in any eqn we got

3x + y = 32

3(128/67) + y = 32

y = 26.26 and x = 128/67 = 1.91

Answer