Math, asked by nnodimremigus7, 1 year ago

10m-7n=26
7m+7n=42
( No's two)
5x=5+2y
4x=-19-3y

Answers

Answered by raushan6198
0

10m -7n=26

7m+7n=42

on adding,

17m=68

m=4

from 10m -7n=26

10×4 -7n=26

7n=40 -26

7n=14

n=2

therefore

m=4

n=2

5x=5+2y

5x -2y=5. (I)×3

4x+3y=-19. (ii)×2

15x -6y=15. (iiI)

8x +6y=-38. (iv)

on adding,

23x=23

x=1

from eqn (I)

5×1-2y=5

2y=5 -5

y=0

ans

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