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 = 6a - 5z - 7 for a in terms of z.
| \(\frac{11}{13}\)z + \(\frac{7}{13}\) | |
| -\(\frac{1}{3}\)z + 2 | |
| 7z + 1 | |
| -6z + 1 |