Asked by clary
How many solutions are there for the linear system x – y = –5 and x + y = 1?
Answers
Answered by
Henry
Eq1: x - y = -5
Eq2: x + y = 1
Add the Eqs:
2x = -4
X = -2.
In Eq2, substitute -2 for X:
-2 + y = 1
Y = 3.
Solution = (x,y) = (-2,3).
The lines intersect @ only 1 point.Therefore, we have only one solution.
Eq2: x + y = 1
Add the Eqs:
2x = -4
X = -2.
In Eq2, substitute -2 for X:
-2 + y = 1
Y = 3.
Solution = (x,y) = (-2,3).
The lines intersect @ only 1 point.Therefore, we have only one solution.
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