What is the solution to the linear system y=-5x-21 and y=7x+15

Question

Mathematics

Paxton Hardy

24 November, 05:57

What is the solution to the linear system y=-5x-21 and y=7x+15

+1

Answers (2)

Know the Answer?

Carmen Weiss · Answer 1

(-3,-6)

Step-by-step explanation:

Compair, then solve for x=-3

then solve you should get y=-6

Cannon Gallagher · Answer 2

(-3, - 6).

Step-by-step explanation:

Since both expressions in x are equal to y:

-5x - 21 = 7x + 15

-12x = 36

x = - 3.

Plug x = - 3 into the first equation:

y = - 5*-3 - 21

= 15 - 21

y = - 6.

y =