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 4a - 7a = -2a + z - 8 for a in terms of z.
| 1\(\frac{3}{10}\)z - \(\frac{3}{10}\) | |
| -1\(\frac{4}{9}\)z - \(\frac{4}{9}\) | |
| -z + \(\frac{3}{7}\) | |
| 1\(\frac{1}{3}\)z - 1\(\frac{1}{3}\) |