Question

If 9x x 3x+1 = 2187, what is the value of x?




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Answer 1

x = 80.96

Explanation:

9x * 3x +1 = 2187

27x +1 = 2187

27x = 2187-1

27x = 2186

x = 2186/27 = 80.96(2dp)