0.4x+0.3y=1.7
0.7y-0.2y=0.8
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Step-by-step explanation:
0.4x+0.3y =1.7
multiplying by 10 in both sides
=> 4x+3y= 17........,.......(1)
0.7y-0.2y=0.8
0.5y= 0.8
5y= 8 multiplying by 10
y= 8/5
putting the value of y in (1)
4x+3×8/5= 17
4x+24/5= 17
4x= 17-24/5
= (17×5-24)/5= 61/5
x= 61/(5×4)
= 61/20
therefore x= 61/5= 12 intege 1/5
y= 8/5= 1 integer 3/5
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