S x=2-2y 18)-1= -2x - 3y

Question

asked Jul 14, 2020 161k views

1 Answer

Daniyal Dehleh · Answer 1 · 2020-07-20T04:43:00+0000

For this case we have the following system of equations:

$x = 2-2y\\-1 = -2x-3y$

We substitute the first equation in the second equation:

$-1 = -2 (2-2y) -3y\\-1 = -4 + 4y-3y\\-1 = -4 + y\\-1 + 4 = y\\y = 3$

Now, we look for the value of the variable "x":

$x = 2-2 (3)\\x = 2-6\\x = -4$

Thus, the solution of the system is given by:

(x, y): (- 4,3)

Answer: