0.4x-0.5=0.2(0.2x-0.1)-0.3

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Solution for 0.4x-0.5=0.2(0.2x-0.1)-0.3 equation: 



0.4x-0.5=0.2(0.2x-0.1)-0.3

We move all terms to the left:

0.4x-0.5-(0.2(0.2x-0.1)-0.3)=0



We calculate terms in parentheses: -(0.2(0.2x-0.1)-0.3), so:

0.2(0.2x-0.1)-0.3

We multiply parentheses

0x-0.02-0.3

We add all the numbers together, and all the variables

x-0.32

Back to the equation:

-(x-0.32)



We get rid of parentheses

0.4x-x+0.32-0.5=0

We add all the numbers together, and all the variables

-0.6x-0.18=0

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

-0.6x=0.18

x=0.18/-0.6

x=-0.18/0.6

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