Solve cos54^circ/1=9/x

$$\frac { \cos 54 ^ { \circ } } { 1 } = \frac { 9 } { x }$$

Solve for x

$$x = \frac{90000000000000000}{5877852522924731} = 15\frac{1832212156129035}{5877852522924731} \approx 15.31171455$$

Steps for Solving Linear Equation

Evaluate trigonometric functions in the problem

$$\frac{0.5877852522924731}{1} = \frac{9}{x}$$

Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by x.

$$x\times 0.5877852522924731=9$$

Divide both sides by 0.5877852522924731.

$$x=\frac{9}{0.5877852522924731}$$

Expand \frac{9}{0.5877852522924731} by multiplying both numerator and the denominator by 10000000000000000.

$$x=\frac{90000000000000000}{5877852522924731}$$