Question

3x+2y=-4
y= 4x-2
use substitution

Answer 1

(X,Y) = (0,-2)
Substitute the given value of y and x into the equation and simplify

Answer 2

Answer:
`x = 0` and
`y = -2`

Explanation:

`3x+2y=-4` ............................. equation 1

`y=4x-2` ............................... equation 2

Using substitution method

substitute
`y=4x-2` into equation 1 , equation 1 then becomes

`3x + 2(4x-2) = -4`

`3x+8x-4 = -4`

`11x-4=-4`

add 4 to both sides

`11x = 0`

therefore:

`x = 0`

substitute
`x = 0` into equation 2 to find the value of y

`y = 4x - 2`

`y = 4(0) - 2`

`y = -2`

therefore:

`x = 0` and
`y = -2`