Respuesta :
Answer:
(2,-3)
Step-by-step explanation:
by elemination
2x + 2y = –2
3x – 2y = 12
cross out the 2y and -2y because the cancle each other.
that leaves 2x= -2
and 3x = 12.
simply add/subtract. 2x+3x=5x
-2+12=10.
5x=10
x=2.
now for the y. we have x so all we have to do is plug.
take any equation. 2x + 2y = –2 and plug 2 into the x.
2(2)+ 2y = –2
4+2y= -2
-2-4= -6
2y=-6
y=-3.
put x and y into ordered pairs
(2,-3) and done.
easy peasy.
Answer:
x=2 y= -3
Step-by-step explanation:
2x+2y = -2
x+y = -1 (dividing both sides with 2
x+1 = -y
3x - 2y = 12
3x + (-y)(2) = 12
3x + (x+1)(2) = 12
3x+2x+2=12
5x+2=12
x=2
-y= 1+2
y= -3