Question

What is the solution to the system of equations below?

y = negative 3 x minus 9 and y = one-third x minus 39

Answer 1

A

Explanation:

did the test

Answer 2

The values of x and y is x=9 and y=-36

Therefore the solution is (9,-36)

Explanation:

Given system of equation are

`y=-3x-9\hfill (1)`
`y=(1)/(3)x-39\hfill (2)`

To Solve the given system of equation

Now equating equations (1) and (2) we get

`-3x-9=(1)/(3)x-39`

`-3x-9-(1)/(3)x+39=0`

`(-9x-x+90)/(3)=0`

`-10x+90=0`

`-10x=-90`

`x=(90)/(10)`

Therefore x=9

substitute x=9 in (1) we get

y=-3(9)-9

=-27-9

Therefore y=-36

Therefore x=9 and y=-36

The solution is (9,-36)