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 + 9a = 5a + 4z - 5 for a in terms of z.
| \(\frac{5}{11}\)z + \(\frac{5}{11}\) | |
| -1\(\frac{1}{2}\)z + \(\frac{3}{4}\) | |
| -\(\frac{2}{5}\)z - \(\frac{3}{5}\) | |
| -\(\frac{2}{15}\)z + \(\frac{3}{5}\) |