simultaneously equation please solve it
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0.2 X + 0. 1y =25
0.1(2 X + Y) = 25
2X + Y = 250 - - - - - - - - - (1)
2(X-2)-1.6Y=116
2X-4-1.6Y=116
Transposing (- 4) on right side.
2X-1.6Y=120-----------------(2)
Equating (1)& (2)
2X + Y = 250
2X-1.6Y=120
(-) (+) (-)
2.6Y = 130
Y=50---------------(3)
Putting (3) in (1)
2X + 50 = 250
2X=200
X=100
0.1(2 X + Y) = 25
2X + Y = 250 - - - - - - - - - (1)
2(X-2)-1.6Y=116
2X-4-1.6Y=116
Transposing (- 4) on right side.
2X-1.6Y=120-----------------(2)
Equating (1)& (2)
2X + Y = 250
2X-1.6Y=120
(-) (+) (-)
2.6Y = 130
Y=50---------------(3)
Putting (3) in (1)
2X + 50 = 250
2X=200
X=100
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