When solving an equation with two variables, replace the variables with the values given and then solve the now variable-free equation. (Remember order of operations, PEMDAS, Parentheses, Exponents, Multiplication/Division, Addition/Subtraction.)
Solve a - a = -2a + 5z + 1 for a in terms of z.
| 2z + \(\frac{1}{3}\) | |
| -2\(\frac{1}{2}\)z + 1\(\frac{1}{3}\) | |
| \(\frac{5}{13}\)z - \(\frac{9}{13}\) | |
| 1\(\frac{6}{7}\)z - \(\frac{5}{7}\) |