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 -4a + 6a = 5a + 9z - 5 for a in terms of z.
| 1\(\frac{1}{3}\)z + 1 | |
| -10z - 2 | |
| 7z - 4 | |
| -\(\frac{1}{3}\)z + \(\frac{5}{9}\) |