No.
(2, 3)
The question is not quite clear, do you mean -6x+3y = -18 and -10+5y = -30? If so then the solution is: -10+5y= -30 5y = -30+10 5y = -20 y = -4 Substitute the value of y into the equation -6x+3y = -18: Answer: x = 1 and y = -4
(9,3)
(-5, 2)
8 + 5y = 18 Therefore, 5y = 10 y = 10/5 y = 2
No.
(2, 3)
4y + 10 = -18 4y = -28 y = -7
The question is not quite clear, do you mean -6x+3y = -18 and -10+5y = -30? If so then the solution is: -10+5y= -30 5y = -30+10 5y = -20 y = -4 Substitute the value of y into the equation -6x+3y = -18: Answer: x = 1 and y = -4
(9,3)
(-5, 2)
The Commutative Property of Addition.
x=(-5y-1)/3
5y + 7 = 25y = -5y = -1
-2 = 3y-18-5y 16=3y-5y 16=-2y y=-8
no