20-15x=25-12x+9

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Solution for 20-15x=25-12x+9 equation: 



20-15x=25-12x+9

We move all terms to the left:

20-15x-(25-12x+9)=0

We add all the numbers together, and all the variables

-15x-(-12x+34)+20=0

We get rid of parentheses

-15x+12x-34+20=0

We add all the numbers together, and all the variables

-3x-14=0

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

-3x=14

x=14/-3

x=-4+2/3

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