Question

Consider the following pair of equations y= x+4 y= -2x -2

Answer 1

The value of x , y is - 2 , 2

Explanation:

Given two linear equations as

y = x + 4 .........A

y = - 2 x - 2 ..........B

Now, Solving the equations using substitution method

So, Put the value of y from eq B into eq A

i.e - 2 x - 2 = x + 4

Or, - 2 x - x = 4 + 2

Or, - 3 x = 6

∴ x =
`(6)/(-3)`

i.e x = - 2

Now, Putting value of x into eq A

∵ y = x + 4

So, y = - 2 + 4

i.e y = 2

So,The value of x = - 2 , The value of y = 2

Hence, The value of x , y is - 2 , 2 Answer