Question

please solve x=2y-90 and 3x-y=40

Answer 1

Answer:

x=34,y=62

Step-by-step explanation:

x-2y=-90

6x-2y=80 [multiplying the (ii)eq. by 2]

Now on subtracting,we get

-5x=-170

x=34

and y=62

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Answer 2

x = 2y-90 (i)

3x-y = 40 (ii)

Putting the value of x in equation (ii)

3x-y = 40

=) 3(2y-90)-y = 40

=) 6y-270-y = 40

=) 6y-y = 40+270

=) 5y = 310

=) y = 310/5 = 62

Putting the value of y in equation (i)

x = 2y-90

=) x = (2×62)-90

=) x = 124-90

=) x = 34

Ans:- Value of x = 34

Value of y = 62

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