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Which equations are true?


There is more than one correct answer choice. Select all that apply.


4⋅5m+4⋅7=20m+47


14+21w=7(2+3w)


49r+35=7(7r+35)


9(8h−3)=72h−27


5⋅2+5⋅3t=10+15t


3⋅6f+3⋅11=18f−33

HELP PLZZZZZ

Respuesta :

Answer:

Step-by-step explanation:

1)4.5m+4.7=20m+47

4.5m-20m=47-4.7

-15.5m=42.2

m=-2.72

2)14+21w=7(2+3w)

  41+21w=14+21w

   21w-21w=14-41

3)49r+35=7(7r+35)

  49r+35=49r+245

 49r-49r=245-35

4)9(8h-3)=72h-27

  72h-27=72h-27

   72h-72h=-27+27

5)5.2+5.3t=10+15t

   5.3t-15t=10-5.2

    -9.7t=4.8

      t=4.8/-9.7

      t=0.49

6)6f+3.111=18f-33

  6f-18f=-33-3.111

  -12f=-36.111

     f=-36.111/-12

     f=3.01

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