Solve phi=(4500N*C^{-1})(123.36*10^{-4}m^2)cos{tan^-1(18.5*10^-2m)/(frac{122{2}*10^-2m)}}

$$\phi = ( 4500 N \cdot C ^ { - 1 } ) ( 123.36 \times 10 ^ { - 4 } m ^ { 2 } ) \cos \{ \tan ^ { - 1 } \frac { ( 18.5 \times 10 ^ { - 2 } m ) } { ( \frac { 122 } { 2 } \times 10 ^ { - 2 } m ) } \}$$

Solve for N

$$N=\frac{125\sqrt{16253}Cϕ}{846558m^{2}}$$

$$C\neq 0\text{ and }m\neq 0$$

Steps for Solving Linear Equation

Multiply 4500 and 123.36 to get 555120.

$$ϕ=555120NC^{-1}\times 10^{-4}m^{2}\cos(\arctan(\frac{18.5\times 10^{-2}m}{\frac{122}{2}\times 10^{-2}m}))$$

Calculate 10 to the power of -4 and get \frac{1}{10000}.

$$ϕ=555120NC^{-1}\times \frac{1}{10000}m^{2}\cos(\arctan(\frac{18.5\times 10^{-2}m}{\frac{122}{2}\times 10^{-2}m}))$$

Multiply 555120 and \frac{1}{10000} to get \frac{6939}{125}.

$$ϕ=\frac{6939}{125}NC^{-1}m^{2}\cos(\arctan(\frac{18.5\times 10^{-2}m}{\frac{122}{2}\times 10^{-2}m}))$$

Calculate 10 to the power of -2 and get \frac{1}{100}.

$$ϕ=\frac{6939}{125}NC^{-1}m^{2}\cos(\arctan(\frac{18.5\times \frac{1}{100}m}{\frac{122}{2}\times 10^{-2}m}))$$

Multiply 18.5 and \frac{1}{100} to get \frac{37}{200}.

$$ϕ=\frac{6939}{125}NC^{-1}m^{2}\cos(\arctan(\frac{\frac{37}{200}m}{\frac{122}{2}\times 10^{-2}m}))$$

Divide 122 by 2 to get 61.

$$ϕ=\frac{6939}{125}NC^{-1}m^{2}\cos(\arctan(\frac{\frac{37}{200}m}{61\times 10^{-2}m}))$$

Calculate 10 to the power of -2 and get \frac{1}{100}.

$$ϕ=\frac{6939}{125}NC^{-1}m^{2}\cos(\arctan(\frac{\frac{37}{200}m}{61\times \frac{1}{100}m}))$$

Multiply 61 and \frac{1}{100} to get \frac{61}{100}.

$$ϕ=\frac{6939}{125}NC^{-1}m^{2}\cos(\arctan(\frac{\frac{37}{200}m}{\frac{61}{100}m}))$$

Cancel out m in both numerator and denominator.

$$ϕ=\frac{6939}{125}NC^{-1}m^{2}\cos(\arctan(\frac{\frac{37}{200}}{\frac{61}{100}}))$$

Divide \frac{37}{200} by \frac{61}{100} by multiplying \frac{37}{200} by the reciprocal of \frac{61}{100}.

$$ϕ=\frac{6939}{125}NC^{-1}m^{2}\cos(\arctan(\frac{37}{200}\times \frac{100}{61}))$$

Multiply \frac{37}{200} and \frac{100}{61} to get \frac{37}{122}.

$$ϕ=\frac{6939}{125}NC^{-1}m^{2}\cos(\arctan(\frac{37}{122}))$$

Swap sides so that all variable terms are on the left hand side.

$$\frac{6939}{125}NC^{-1}m^{2}\cos(\arctan(\frac{37}{122}))=ϕ$$

The equation is in standard form.

$$\frac{6939\cos(\arctan(\frac{37}{122}))m^{2}}{125C}N=ϕ$$

Divide both sides by \frac{6939}{125}C^{-1}m^{2}\cos(\arctan(\frac{37}{122})).

$$\frac{\frac{6939\cos(\arctan(\frac{37}{122}))m^{2}}{125C}N\times 125C}{6939\cos(\arctan(\frac{37}{122}))m^{2}}=\frac{ϕ\times 125C}{6939\cos(\arctan(\frac{37}{122}))m^{2}}$$

Dividing by \frac{6939}{125}C^{-1}m^{2}\cos(\arctan(\frac{37}{122})) undoes the multiplication by \frac{6939}{125}C^{-1}m^{2}\cos(\arctan(\frac{37}{122})).

$$N=\frac{ϕ\times 125C}{6939\cos(\arctan(\frac{37}{122}))m^{2}}$$

Divide ϕ by \frac{6939}{125}C^{-1}m^{2}\cos(\arctan(\frac{37}{122})).

$$N=\frac{125\sqrt{16253}Cϕ}{846558m^{2}}$$

Solve for C

$$\left\{\begin{matrix}\\C\neq 0\text{, }&\text{unconditionally}\\C=\frac{846558\sqrt{16253}Nm^{2}}{2031625ϕ}\text{, }&m\neq 0\text{ and }N\neq 0\text{ and }ϕ\neq 0\end{matrix}\right.$$