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 + 4a = -3a + 9z + 5 for a in terms of z.
| \(\frac{3}{4}\)z - 1\(\frac{3}{4}\) | |
| 5z + 5 | |
| -\(\frac{1}{4}\)z - \(\frac{7}{12}\) | |
| 1\(\frac{3}{8}\)z - \(\frac{1}{2}\) |