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 7a - 5a = -7a + z + 3 for a in terms of z.
| -\(\frac{8}{9}\)z - \(\frac{7}{9}\) | |
| -1\(\frac{5}{12}\)z + \(\frac{1}{6}\) | |
| \(\frac{3}{7}\)z + \(\frac{3}{14}\) | |
| -\(\frac{9}{10}\)z + \(\frac{1}{5}\) |