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Answer:
x = -1 or 2
Step-by-step explanation:
Taking the antilog, you have the quadratic ...
x^2 -x -1 = 1
x^2 -x -2 = 0 . . . . subtract 1
(x -2)(x +1) = 0 . . . factor
The values of x that make these factors zero are the solutions to the equation.
x = 2 or x = -1
Answer:
x = 17.5°
Step-by-step explanation:
complementary means their sum is 90°.
x + 3x + 20° = 90°
4x = 70°
x = 17.5°