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25-02-2020
Mathematics

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Solve the following system by substitution method. 2x-7y=12
-x+3.5=-6

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chhavib chhavib

25-02-2020

-x+3.5=-6
x= 3.5+6 = 9.5

2x-7y = 12
2(9.5) -7y = 12
19 - 7y= 12
7y = 19-12
7y = 7
y= 1

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