12.45+0.12(x+3)=13.20-0.15x

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Solution for 12.45+0.12(x+3)=13.20-0.15x equation: 



12.45+0.12(x+3)=13.20-0.15x

We move all terms to the left:

12.45+0.12(x+3)-(13.20-0.15x)=0

We add all the numbers together, and all the variables

0.12(x+3)-(-0.15x+13.2)+12.45=0

We multiply parentheses

0.12x-(-0.15x+13.2)+0.36+12.45=0

We get rid of parentheses

0.12x+0.15x-13.2+0.36+12.45=0

We add all the numbers together, and all the variables

0.27x-0.39=0

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

0.27x=0.39

x=0.39/0.27

x=1+0.12/0.27

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