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 -7c - 3c = 7c + z + 2 for c in terms of z.
| -15z + 3 | |
| -1\(\frac{2}{3}\)z - 1\(\frac{2}{3}\) | |
| 1\(\frac{2}{3}\)z + 2\(\frac{2}{3}\) | |
| -\(\frac{2}{7}\)z - \(\frac{1}{7}\) |