in two numbers 2 times of the second number is subtracted from 5 times of the first number gives 40. three times of the second number is subtracted from four times of the first number gives 25. what are the numbers?
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math na to ase mare ha na kisna mare hogi
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Step-by-step explanation:
numbers be x and y.
2y-5x=40(1 equation )
3y-4x=25(2nd equation )
we cannot add or substract, because any numbers(x&y) no cancelled.
1 equation multiplied by 3
and 2nd equation multiplied by 2
Then,
6y-15x=120(3rd equation )
6y-8x=50(4th equation )
_____________________
0-7x=70
x=70/2
=10
x=10//
Then, y=
2y-5x=40
2y-5×10=50=40
2y=40±50
2y=90
y=90/2=45
y=45//
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