0.4(20-10x)=2.5-2x-12.5

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Solution for 0.4(20-10x)=2.5-2x-12.5 equation: 



0.4(20-10x)=2.5-2x-12.5

We move all terms to the left:

0.4(20-10x)-(2.5-2x-12.5)=0

We add all the numbers together, and all the variables

0.4(-10x+20)-(-2x-10)=0

We multiply parentheses

-4x-(-2x-10)+8=0

We get rid of parentheses

-4x+2x+10+8=0

We add all the numbers together, and all the variables

-2x+18=0

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

-2x=-18

x=-18/-2

x=+9

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