Question

if 3x-5y = -1 and y=x+1​

Answer 1

Answer:

3x - 5y = -1

y - X = 1

3x - 5y = -1

3( -x +y ) = 1

3x -5y = -1

-3x -3y = -3

-8y = -4

y = -4/-8

y = 1/2

y - X = 1

1/2 - X = 1

-x = 1 - 1/2

-x = 2-1/2

-x = 1/2

X = -1/2

Answer 2

Answer:

3x-5y= -1 ----a

y= x+1

x-y= -1 -----b

now,

a - 3×b

So, 3x - 5y -3x+ 3y = -1+3

therefore, -2y = 2

hence, y= -1

and x = -1 + y = -1 -1 = -2