Question

x+y= 3

2x + 5y = 13

substitution method

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Answer 1

x+y=3--------1. 2x+5y=13---------2

y=3-x

substitute value of y in equation 2

2x+5y=13

2x+5(3-x)=13

2x+15-5x=13

-3x=-15+13

-3x=-2

3x=2

x=2/3

substitute value of x in equation 1

x+y=3

2/3+y=3

y=3-2/3

y=(9-2)/3

y=7/3

Answer 2

Answer:

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