Question

5m-3n=19; m-6n=-7
solve
Let us write value of y in terms of from equation (II)as
m=-7+6n......,(3)
put eq(3) in eq(1)
5m-3n=19
5(-7+6n) - 3n = 19
35 - 30n - 3n = 19
35 - 27n - = 19
27n = 19 + 35
27n = 19 + 35
27n = 54
[ n = 2]

put n = 2 in eq(3)
m = -7 + 6×2
m = -7 + 12
[m = 5]


Ans. n = 2 ; m = 5
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Answer 1

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Step-by-step explanation:

Answer 2

Answer:

n=2;m=5

Step-by-step explanation:

Let us write value of y in terms

from equation (II)as

m=-7+6n......,(3)

put eq(3) in eq(1)

5m-3n=19

5(-7+6n) - 3n = 19

35 - 30n - 3n = 19

35 - 27n - = 19

27n = 19 + 35

27n = 19 + 35

27n = 54

[ n = 2]

put n = 2 in eq(3)

m = -7 + 6×2

m = -7 + 12

[m = 5]