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 8a - 7a = -9a + 5z - 5 for a in terms of z.
| -z - 2 | |
| -16z - 3 | |
| \(\frac{12}{17}\)z - \(\frac{5}{17}\) | |
| -4\(\frac{1}{2}\)z - 3\(\frac{1}{2}\) |