Solve the system of equations by the addition method.?

{x + y = -1
{x + y = -9

a. (0, 0)
b. (0, -10)
c. (-1, -9)
d. no solution

2007-12-03 03:27:19 · 2 answers · asked by . 1 in Science & Mathematics ➔ Mathematics

subtract equation 2 from equation 1:
0 = 8
impossible, no solution

2007-12-03 03:31:20 · answer #1 · answered by Philo 7 · 0⤊ 0⤋

The answer is d (no solution)

2007-12-03 03:32:36 · answer #2 · answered by A Little Sarcasm Helps 5 · 0⤊ 0⤋

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