The point (2,1) is the solution of which of the following systems of equations? A. y=−2x+5 and y=2x+2
B. y=−2x+5 and y=2x−2
C. y=x+3 and y=3x−5
D. y=−x+3 and y=3x−5

Which of the following questions describes the equation g + (-4) = -5? a)what number, when added to negative four, is equal to negative five? b)what number, when added to negative five, is equal to negative four? c)what number, when subtracted from negative four, is equal to negative five? d)what number, when subtracted from negative five, is equal to negative four?