Question

Y’all give me dis answer to

Answer 1

The solution is: (1,-3)

Explanation:

Given equations are:

x-y=4 Eqn 1

4x+y = 1 Eqn 2

Substitution involves finding value of a variable from one equation and putting in other equation

From equation 1

x = y + 4

Putting in equation 2

`4(y+4) + y = 1\\4y+16+y = 1\\5y = 1-16\\5y = -15\\(5y)/(5) = (-15)/(5)\\y = -3`

Putting y = -3 in equation 1

`x- (-3) = 4\\x + 3 = 4\\x = 4-3\\x = 1`

Hence,

The solution is: (1,-3)