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 -4a + 8a = -7a + 3z - 1 for a in terms of z.
| -\(\frac{5}{13}\)z + \(\frac{6}{13}\) | |
| -z - \(\frac{4}{11}\) | |
| -1\(\frac{2}{3}\)z - \(\frac{1}{3}\) | |
| \(\frac{7}{13}\)z - \(\frac{5}{13}\) |