20x+9=15x+39

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Solution for 20x+9=15x+39 equation: 



20x+9=15x+39

We move all terms to the left:

20x+9-(15x+39)=0

We get rid of parentheses

20x-15x-39+9=0

We add all the numbers together, and all the variables

5x-30=0

We move all terms containing x to the left, all other terms to the right

5x=30

x=30/5

x=6

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