Solve for x
x=3.66062978768220135
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0.40673664307580015 = \frac{x}{9}
Evaluate trigonometric functions in the problem
0.40673664307580015\times 9=x
Multiply both sides by 9.
3.66062978768220135=x
Multiply 0.40673664307580015 and 9 to get 3.66062978768220135.
x=3.66062978768220135
Swap sides so that all variable terms are on the left hand side.
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