We can check by subbing in the values.
7x + 2y = -7
(7,9).....x = 7 and y = 9
now we sub
7(7) + 2(9) = -7
49 + 18 = -7
67 = -7 (incorrect)....therefore, (7,9) is NOT a solution for this equation
1/(x+4)2, hope this helped!
P+5= -2
p= -7 ( I subtracted 5 to both sides of the equation)
Difference=subtract sum=add. just answering so you don't waste points :-)
Answer:
2. trust me.. i did it before.
