1 Answer

Rewind · Answer 1 · 2020-09-09T23:34:33+0000

For this case we must solve the following system of equations:

$y = x + 2\\2x-y = -4$

So, we substitute the first equation in the second one:

2x- (x + 2) = - 4

We consider by law of signs of multiplication that:

$- * + = -\\2x-x-2 = -4\\x-2 = -4\\x = -4 + 2$

Different signs are subtracted and the sign of the major is placed:

x = -2

We look for the value of the variable "y":

$y = -2 + 2\\y = 0$

Thus, the solution of the system is given by:
(x, y): (- 2,0)

Answer:

Option B

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