Question

simplify.
-9x - 6x

Explanation:

Step1: Identify like terms

The terms \(-9x\) and \(-6x\) are like terms (both have the variable \(x\) with the same exponent, which is \(1\) here).

Step2: Combine like terms

To combine like terms, we add their coefficients. The coefficient of \(-9x\) is \(-9\) and the coefficient of \(-6x\) is \(-6\). So we calculate \(-9 + (-6)\).
\(-9 + (-6)=-15\)
So, \(-9x - 6x=-15x\).

Answer:

\(-15x\)