Find the solution of the given pair of linear Equations by cross multiplication method : 6x + 7y = 20 and 5x - 8y = -11.
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Answered by
0
Answer:
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Step-by-step explanation:
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Answered by
1
Answer:
x=1
y=12/7
Step-by-step explanation:
6x + 7y = 20 -------1×8
=>48x + 56y = 160----------2
5x - 8y = -11.--------3×7
=>35x - 56y = -77----------4
1+4,we get
48x + 56y 35x - 56y =160-77
=>83x=83
=>x=1
From 1--->
6x + 7y = 20
6+ 7y= 20
7y=12
y=12/7
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