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