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 6a + 7a = 3a + 4z - 2 for a in terms of z.
| \(\frac{3}{13}\)z - \(\frac{8}{13}\) | |
| -z - \(\frac{2}{3}\) | |
| 5z + 4 | |
| 1\(\frac{1}{9}\)z - 1 |