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