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 9a + 8a = 3a + z + 8 for a in terms of z.
| -11z + 3 | |
| -\(\frac{3}{4}\)z + \(\frac{3}{4}\) | |
| -\(\frac{5}{11}\)z + \(\frac{9}{11}\) | |
| -1\(\frac{1}{6}\)z + 1\(\frac{1}{3}\) |