Q. Combine the like terms to create an equivalent expression:−4r−2r+5
Identify like terms: Identify like terms in the expression −4r−2r+5.Like terms are terms that contain the same variable raised to the same power. Here, −4r and −2r are like terms because they both contain the variable r raised to the first power.
Combine like terms: Combine the like terms −4r and −2r.To combine like terms, add or subtract their coefficients. In this case, we add the coefficients of −4 and −2.Calculation: −4r−2r=(−4−2)r=−6r
Rewrite expression: Rewrite the expression with the combined like terms.After combining like terms, the expression becomes −6r+5.
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