Identify like terms: Identify like terms in the expression −7g+−3g+−9g+2g. Like terms are terms that contain the same variable raised to the same power. In this case, all terms are like terms because they all contain the variable g.
Combine like terms: Combine the like terms by adding or subtracting the coefficients.−7g+−3g+−9g+2g= (−7−3−9+2)g= (−10−9+2)g= (−19+2)g= −17g
Check for errors: Check for any mathematical errors in the previous steps.The coefficients were correctly added and subtracted, and the variable 'g' was correctly maintained throughout the process.
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