Question

find the solution of the following pair of the linear equation.x+y=16,x-y=4

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Answer 1

Answer:

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Answer 2

Answer:

x+y=16...eq 1

x-y=4.....eq 2

+y-y=0(by addition)

2x=20

x=10

putting the value of x in eq 1

16-10=y

6=y