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If the question is to solve the system of the equations of two variables, then:
Let y = f(x) = 2x - 5, and
let y = g(x) = -3x - 1
So we have:
y = 2x - 5
y = -3x - 1
2x - 5 = -3x - 1
2x + 3x -5 + 5 = -3x + 3x - 1 + 5
5x = 4
x = 4/5
y = 2x - 5
y = 2(4/5) - 5
y = 8/5 - 5
y = 8/5 - 5 x 5/5
y = 8/5 - 25/5
y = (8 - 25)/5
y = -17/5
Thus, the solution of the system is x = 4/5 and y = -17/5.
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