Question

solve 2x+7y=9 , 8x-y=7 by substituting

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Answer 1

Answer:

x=0,y=7

Step-by-step explanation:

2x+7y=9.......1

8x- y=7........2

multiplying 2 equ by 7

56x-7y=49.........3

adding equ 3 and 1

56x-7y=49

+

2x+7y=9

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58x. =58

x. =58

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58

x. =0

substituting x=0 in equ 2

8x-y=7

8x0-y=7

y=7