Question

Solve this system of linear equations. Separate the x- and y- values with a comma.

17x = 43 - 15y
8x = -68 + 15y

Answer 1

(-1,4)

Explanation:

Using elimination, add the two equations to get rid of the y variable.

17x = 43 - 15y

+8x = -68 + 15y

=25x = -25

x = -1

Now plug in -1 for x in any of the equations.

17(-1) = 43 - 15y

-17 = 43 - 15y

-60 = -15y

y = 4