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 -2a - 5a = -7a + 3z - 5 for a in terms of z.
| 1\(\frac{3}{5}\)z - 1 | |
| -1\(\frac{2}{11}\)z + \(\frac{6}{11}\) | |
| 1\(\frac{3}{7}\)z + \(\frac{2}{7}\) | |
| 1\(\frac{1}{10}\)z - \(\frac{1}{10}\) |