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