0.4x+21=-0.2(8x-25)-2x

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Solution for 0.4x+21=-0.2(8x-25)-2x equation: 



0.4x+21=-0.2(8x-25)-2x

We move all terms to the left:

0.4x+21-(-0.2(8x-25)-2x)=0



We calculate terms in parentheses: -(-0.2(8x-25)-2x), so:

-0.2(8x-25)-2x

We add all the numbers together, and all the variables

-2x-0.2(8x-25)

We multiply parentheses

-2x-1.6x+5

We add all the numbers together, and all the variables

-3.6x+5

Back to the equation:

-(-3.6x+5)



We get rid of parentheses

0.4x+3.6x-5+21=0

We add all the numbers together, and all the variables

4x+16=0

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

4x=-16

x=-16/4

x=-4

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