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 -6a + 7a = 9a - 4z - 3 for a in terms of z.
| -z - \(\frac{2}{13}\) | |
| -2z + 3 | |
| \(\frac{11}{15}\)z + \(\frac{1}{5}\) | |
| \(\frac{1}{10}\)z - \(\frac{1}{5}\) |