4=(-0.8)x

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Solution for 4=(-0.8)x equation: 



4=(-0.8)x

We move all terms to the left:

4-((-0.8)x)=0



We calculate terms in parentheses: -((-0.8)x), so:

(-0.8)x

We multiply parentheses

-0.8x

Back to the equation:

-(-0.8x)



We get rid of parentheses

0.8x+4=0

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

0.8x=-4

x=-4/0.8

x=-5

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