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 -5a - 6a = -6a + 7z - 6 for a in terms of z.
4z + 2 | |
-\(\frac{2}{3}\)z + \(\frac{1}{3}\) | |
13z - 6 | |
-\(\frac{1}{8}\)z + \(\frac{3}{4}\) |