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