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