Solve the system. x – y +z = 14 y +z = 15 z = 7 Enter your answer as an ordered triple.
1 answer:
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Xy = -126
x + y = -65
x + y = -65
1.9 + y = -65
- 1.9 - 1.9
y = -66.9
(x, y) = (1.9, -66.9)
or
x + y = -65
-66.9 + y = -65
+ 66.9 + 66.9
y = 1.9
(x, y) = (-66.9, 1.9)
The two numbers that add up to -65 and can multiply to -126 are the numbers -66.9 and 1.9.
x + y = -65
x + y = -65
1.9 + y = -65
- 1.9 - 1.9
y = -66.9
(x, y) = (1.9, -66.9)
or
x + y = -65
-66.9 + y = -65
+ 66.9 + 66.9
y = 1.9
(x, y) = (-66.9, 1.9)
The two numbers that add up to -65 and can multiply to -126 are the numbers -66.9 and 1.9.