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