solve by substituion method 0.4x + 0.3y = 1.7 , 0.7x - 0.2 = 0.8 for class 10
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0.4 x+0.3y =1.7...…......(1)
0.7 x-0.2 y=0.8...........(2)
0.4x =1.7-0.3y
x=1.7-0.3y/0.4
put value of x in eq.(2)
0.7(1.7-0.3y/0.4)-0.2y=0.8
0.7 x-0.2 y=0.8...........(2)
0.4x =1.7-0.3y
x=1.7-0.3y/0.4
put value of x in eq.(2)
0.7(1.7-0.3y/0.4)-0.2y=0.8
mohit9370:
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