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 -6a - 7a = 4a - 8z + 5 for a in terms of z.
| 12z + 3 | |
| \(\frac{1}{10}\)z - \(\frac{1}{2}\) | |
| -5z + 4 | |
| 1\(\frac{1}{2}\)z + 2 |