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 10a + 8a = 9a + 4z - 3 for a in terms of z.
| z + 1 | |
| -\(\frac{11}{14}\)z - \(\frac{1}{7}\) | |
| -4z - 3 | |
| 1\(\frac{8}{9}\)z - \(\frac{2}{3}\) |