Question

write whether the following pair of linear equation is consistent or not
X + Y = 14 and X- Y = 4​

Answer 1

it is consistent as proof below

x+y=14

x=14-y. [1]

now

x-y=4

x=4+y[2]

from [1]&[2]

14-y=4+y

10=2y

y=5

now

x+y=14

x+5=14

x=9

&

x-y=4

x-5=4

x=9

hence in both. cases value of x and y r same so it is consistent

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Answer 2

a1/a2,b1/b2,c1/c2

this is the formula

your answer is
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