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 - 6a = 5a - 4z + 7 for a in terms of z.
| \(\frac{1}{2}\)z + \(\frac{7}{12}\) | |
| \(\frac{5}{8}\)z + \(\frac{3}{8}\) | |
| -1\(\frac{2}{3}\)z + 2\(\frac{1}{3}\) | |
| -\(\frac{2}{13}\)z - \(\frac{7}{13}\) |