Solve : 141x + 103y = 217; 103x + 141y = 27
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Answer:
Step-by-step explanation:
141x + 103y=217----------------(1)
103x+141y=27--------------(2)
-----------------------
adding 1 and 2 we get...
244x+244y=224-----divide by 224
x+y=1-------(3)
subtracting 2 from 1
141x+103y=217
103x+141y=27
----------------------
38x-38y=190-------divide by 38
x-y=5------(4)
solving (3) and (4)
x+y=1
x-y=5
--------
2x=6
x=6/2
x=3
substituting x=3 in equation (3)
x+y=1
3+y=1
y=1-3
y=-2
hope this helped ;)
sha2006:
sorry
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