Solve {l}{C=B+A}{A=13}{B=A*2}{a=C}{text{Solvefor}btext{where}}{b=a}

$$\left. \begin{array} { l } { C = B + A }\\ { A = 13 }\\ { B = A \cdot 2 }\\ { a = C }\\ { \text{Solve for } b \text{ where} } \\ { b = a } \end{array} \right.$$

Solve for C, B, A, a, b

$$b=39$$

Solution Steps

Consider the third equation. Insert the known values of variables into the equation.

$$B=13\times 2$$

Multiply 13 and 2 to get 26.

$$B=26$$

Consider the first equation. Insert the known values of variables into the equation.

$$C=26+13$$

Add 26 and 13 to get 39.

$$C=39$$

Consider the fourth equation. Insert the known values of variables into the equation.

$$a=39$$

Consider the fifth equation. Insert the known values of variables into the equation.

$$b=39$$

The system is now solved.

$$C=39 B=26 A=13 a=39 b=39$$