Respuesta :

zamanmutasim4

Answer:

Step-by-step explanation:

7x+9=2x+39

7x+9-9=2x+39-9

7x=2x+30

7x-2x=2x+30-2x

5x=30

5x/5=x

30/5=6

x=6

mtn021

Answer:

X=6

Step-by-step explanation:

7x+9=2x+39

First, subtract 9 from both sides like this

7x+9 -9 =2x+39-9

equaling 7x=2x+30

Then, subtract 2 from both sides like this

7x - 2=2x -2+30

equaling 5x=30

Lastly you divide 5 from both sides like this

5x / 5 = 30 / 5

equaling x=6

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