Question

substitute 3x-5y=-1and x-y=-1​

Answer 1

Answer:

x=0

y=1

Step-by-step explanation:

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Answer 2

( x , y ) = ( -2 , -1 )

Step-by-step explanation:

3x - 5y = -1 ... ( 1 )

x - y = -1 ... ( 2 )

Multiply equation ( 2 ) with 5

( x - y = -1 ) × 5

5x - 5y = -5 ... ( 3 )

Substrate equation ( 1 ) amd equation ( 3 )

We get,

3x - 5y = -1

- 5x - 5y = -5

= -2x = -6

-2x = 4

x = 4 / -2

x = -2

Putting the value of x in equation ( 1 )

We get,

3x - 5y = -1 ... ( 1 )

3 ( -2 ) - 5y = -1

-6 - 5y = -1

-5y = -6 - ( -1 )

-5y = 5

y = 5 / -5

y = -1

( x , y ) = ( -2 , -1 )

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Let's check the value of x = -2 and y = -1 by putting them in equation ( 2 )

x - y = -1 ... ( 2 )

-2 - ( -1 ) = -1

-1 = -1

( x , y ) = ( -2 , -1 )