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0.4x+0.3y=1.7. .....1)
0.7x-0.2y =0.8. .....2)
multiply eq. 1)by 0.2 and eq. 2) by
0.3,
0.08x +0.06y=0.34. ....3)
0.21x - 0.06y=0.24. .....4)
add eq. 3) & eq. 4),
0.29x. =0.58
x= 2
put in eq. 1),
y = 54
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