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 - 8a = -4a + 4z - 3 for a in terms of z.
| 1\(\frac{1}{5}\)z + \(\frac{3}{5}\) | |
| 1\(\frac{1}{11}\)z - \(\frac{3}{11}\) | |
| \(\frac{13}{16}\)z + \(\frac{1}{4}\) | |
| 1\(\frac{4}{7}\)z - \(\frac{6}{7}\) |