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 7a + 7a = -8a + 8z + 6 for a in terms of z.
| \(\frac{1}{15}\)z + \(\frac{2}{5}\) | |
| -\(\frac{7}{11}\)z - \(\frac{7}{11}\) | |
| -10z + 4 | |
| -1\(\frac{1}{2}\)z + 3\(\frac{1}{2}\) |