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 a + 3a = 8a - 5z + 5 for a in terms of z.
| \(\frac{7}{12}\)z + \(\frac{1}{6}\) | |
| -\(\frac{3}{4}\)z - \(\frac{1}{4}\) | |
| -11z + 1 | |
| 1\(\frac{1}{7}\)z - \(\frac{5}{7}\) |