Final answer:
To solve the linear equation 9z - 4z = 3, combine like terms on the left side to get 5z = 3. Divide both sides of the equation by 5 to isolate z, giving us z = 3/5.
Step-by-step explanation:
A linear equation is an algebraic equation of the first degree, meaning it involves variables raised to the power of 1 and does not have terms with higher degrees.
To solve the linear equation 9z - 4z = 3, we need to combine like terms on the left side. This gives us 5z = 3. To isolate z, we can divide both sides of the equation by 5. This gives us z = 3/5, which is the solution to the equation.