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 = -2a - 4z + 5 for a in terms of z.
| -\(\frac{7}{9}\)z - \(\frac{2}{3}\) | |
| \(\frac{6}{11}\)z - \(\frac{8}{11}\) | |
| 11z - 5 | |
| -5z - 1\(\frac{2}{3}\) |