-0.5(x+7)=0.9(4-x)

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Solution for -0.5(x+7)=0.9(4-x) equation: 



-0.5(x+7)=0.9(4-x)

We move all terms to the left:

-0.5(x+7)-(0.9(4-x))=0

We add all the numbers together, and all the variables

-0.5(x+7)-(0.9(-1x+4))=0

We multiply parentheses

-0.5x-(0.9(-1x+4))-3.5=0



We calculate terms in parentheses: -(0.9(-1x+4)), so:

0.9(-1x+4)

We multiply parentheses

-0.9x+3.6

Back to the equation:

-(-0.9x+3.6)



We get rid of parentheses

-0.5x+0.9x-3.6-3.5=0

We add all the numbers together, and all the variables

0.4x-7.1=0

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

0.4x=7.1

x=7.1/0.4

x=17+0.3/0.4

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