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 3a + 4a = 2a - 3z - 4 for a in terms of z.
| -\(\frac{10}{11}\)z - \(\frac{7}{11}\) | |
| -7z - 4 | |
| -1\(\frac{2}{9}\)z + 1 | |
| \(\frac{8}{9}\)z - \(\frac{4}{9}\) |