Identify Like Terms: Identify like terms in the expression −9+−n+−2+−4n. Like terms are terms that contain the same variable raised to the same power. In this case, the like terms are −n and −4n.
Combine Like Terms: Combine the like terms −n and −4n. To combine like terms, add their coefficients. The coefficients of −n and −4n are −1 and −4, respectively. −1+(−4)=−5 So, −n+−4n becomes −5n.
Combine Constant Terms: Combine the constant terms −9 and −2. Constant terms are numbers without variables. To combine them, simply add them together. −9+(−2)=−11
Write Simplified Expression: Write the simplified expression by combining the results from Step 2 and Step 3.The simplified expression is −5n−11.
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