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