Whiteboard full of trigonometric facts that you need to know...
1 I am just typing this because it makes me put 20 characters but the answer is 1
4/5 = (4 + 8)/x
4x = 5(12) = 60
x = 60/4 = 15
Answer:
6(2 + 2/3x) = 12 + 4x
Step-by-step explanation:
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