O.4(5+2x)-0.5=3(0.3x+0.7)

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Solution for O.4(5+2x)-0.5=3(0.3x+0.7) equation: 



.4(5+2O)-0.5=3(0.3O+0.7)

We move all terms to the left:

.4(5+2O)-0.5-(3(0.3O+0.7))=0

We add all the numbers together, and all the variables

.4(2O+5)-(3(0.3O+0.7))-0.5=0

We multiply parentheses

0.8O-(3(0.3O+0.7))+2-0.5=0



We calculate terms in parentheses: -(3(0.3O+0.7)), so:

3(0.3O+0.7)

We multiply parentheses

0O+2.1

We add all the numbers together, and all the variables

O+2.1

Back to the equation:

-(O+2.1)



We add all the numbers together, and all the variables

0.8O-(O+2.1)+1.5=0

We get rid of parentheses

0.8O-O-2.1+1.5=0

We add all the numbers together, and all the variables

-0.2O-0.6=0

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

-0.2O=0.6

O=0.6/-0.2

O=-2+0.2/0.2

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