s9092721 s9092721

11-12-2019
Mathematics

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An expression is written as m−5(m+3) +7m. What is the value of the expression when m=x+1?

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ezgiguzel ezgiguzel

11-12-2019

Answer:

3x-12

Step-by-step explanation:

m−5(m+3) +7m

m-5m-15+7m=3m-15

For m=x+1

3(x+1)-15=3x+3-15=3x-12

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