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