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 - 9a = -6a - 6z + 8 for a in terms of z.
| \(\frac{3}{5}\)z + 1\(\frac{3}{5}\) | |
| 1\(\frac{1}{8}\)z - 1\(\frac{1}{8}\) | |
| -4z - 1 | |
| 9z - 3 |