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