garcia1318vd garcia1318vd

16-03-2021
Mathematics

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Solve the equation in two different ways. Choose one method of solving in detail 5x+7(x+1) = 5x - 21

Solve the equation in two different ways Choose one method of solving in detail 5x7x1 5x 21 class=

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mlarsen5000 mlarsen5000

16-03-2021

Answer:

METHOD 1:

5x+7(x+1)=5x-21

5x+7x+7=5x-21

12x+7=5x-21

12x-5x=-21-7

7x=-28

x=28/7

x=4

METHOD 2:

5x+7(x+1)=5x-21

5x+7(x+1)=5x-21-5x

7(x+1)=-21

7x+7=-21

7x=-28

x=4

Step-by-step explanation:

METHOD 1:

5x+7(x+1)=5x-21

5x+7x+7=5x-21

12x+7=5x-21

12x-5x=-21-7

7x=-28

x=28/7

x=4

METHOD 2:

5x+7(x+1)=5x-21

5x+7(x+1)=5x-21-5x

7(x+1)=-21

7x+7=-21

7x=-28

x=4

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