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 -7a + 7a = 2a - 4z - 4 for a in terms of z.
| z - \(\frac{9}{11}\) | |
| -15z - 7 | |
| -\(\frac{7}{13}\)z + \(\frac{8}{13}\) | |
| 1\(\frac{2}{9}\)z + \(\frac{4}{9}\) |