The answer is B.
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Complementary angles add up to 90 so
angle + 47 = 90
angle = 90 - 47
angle = 43 so A
Answer: A.Subtract 9 from both sides
Step-by-step explanation:
Answer A: Subtract 9 from both sides
Explanation: You want to solve the x from this equation, then the first thing is to put the number that has no valiable x to the other sides, so in this equations, we want to move 9 to the right side, so we subtract 9 from both sides.
