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 - 5a = -3a - 7z - 4 for a in terms of z.
| -2\(\frac{5}{7}\)z - \(\frac{4}{7}\) | |
| -\(\frac{1}{2}\)z - 1 | |
| \(\frac{1}{3}\)z - \(\frac{1}{3}\) | |
| \(\frac{11}{15}\)z + \(\frac{1}{5}\) |