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Given the system of equations: 2x – y = –2 x = 14 + 2y What is the value of the system determinant...
4 months ago
Q:
Given the system of equations: 2x – y = –2 x = 14 + 2y What is the value of the system determinant? What is the value of the y−determinant? What is the value of the x−determinant? What is the solution to the system of equations?
Accepted Solution
A:
2x - y = -2
x = 14 + 2y
Plug in the x equation
2(14+2y) - y = -2
Distribute
28 + 4y - y = -2
Combine variables
28 + 3y = -2
Subtract 28 on both sides
3y = -30
Divide the y
y = -10