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 5a + 2a = -7a + 6z + 1 for a in terms of z.
| z + \(\frac{3}{4}\) | |
| -\(\frac{9}{10}\)z + \(\frac{2}{5}\) | |
| \(\frac{1}{3}\)z + \(\frac{1}{12}\) | |
| z - 1\(\frac{3}{4}\) |