Answer:
Explanation:
You want the solution to the system of equations ...
Solution
We notice that each of these equations has a leading minus sign, and has coefficients that have a common factor. We can multiply by -1 to make the leading coefficient positive, and we can divide by the common factor. Doing this puts the equations in standard form:
2x -y = -6
x -y = -4
Subtracting the second equation from the first gives ...
(2x -y) -(x -y) = (-6) -(-4)
x = -2
Rearranging the second equation to find y, we have ...
y = x +4
y = -2 +4 = 2
The solution is (x, y) = (-2, 2).
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