5m - 3m = 19 ; m - 6m = -7
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Answer:
m=5, n=2
Step-by-step explanation:
5m-3n=19. (I)
m-6n=-7. (II)
multiply equation (II) by 2
10m-6n=38. (III)
subtract equation (III) and (II)
10m-6n=38
m-6n=-7
9m. = 45
m=45/9
m=5
substitute m=5 in Equation (II)
m-6n=-7
5-6n=-7
-6n=-7-5
-6n=-12
n=-12/-6
n=2
(m=5) (n=2)
or question mai 3n,6n anaa chahiye
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