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 2a + 6a = -3a + 8z - 4 for a in terms of z.
| -\(\frac{10}{13}\)z - \(\frac{2}{13}\) | |
| -\(\frac{1}{5}\)z + 1\(\frac{2}{5}\) | |
| -2z + 1\(\frac{3}{4}\) | |
| \(\frac{2}{5}\)z - \(\frac{4}{5}\) |