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