4x+9=7x+20

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Solution for 4x+9=7x+20 equation: 



4x+9=7x+20

We move all terms to the left:

4x+9-(7x+20)=0

We get rid of parentheses

4x-7x-20+9=0

We add all the numbers together, and all the variables

-3x-11=0

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

-3x=11

x=11/-3

x=-3+2/3

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