Step-by-step explanation:
option B is correct as,
10 + x = -18
→ x = -18 -10
→ x = -28
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The correct answer is tanx(1-secx)/(1+secx)(1-secx)
Answer:
x = 4 degrees
Step-by-step explanation:
The two angles have the same measurement. They are opposite angles.
26x + 7 = 31x - 13
Group like terms:
26x - 31x = -13 - 7
-5x = -20
x = 4
<em>Check if you want to make sure.</em>
