0.4x+0.4(30)=0.3(x+40)

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Solution for 0.4x+0.4(30)=0.3(x+40) equation: 



0.4x+0.4(30)=0.3(x+40)

We move all terms to the left:

0.4x+0.4(30)-(0.3(x+40))=0

We add all the numbers together, and all the variables

0.4x-(0.3(x+40))+0.43=0



We calculate terms in parentheses: -(0.3(x+40)), so:

0.3(x+40)

We multiply parentheses

0.3x+12

Back to the equation:

-(0.3x+12)



We get rid of parentheses

0.4x-0.3x-12+0.43=0

We add all the numbers together, and all the variables

0.1x-11.57=0

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

0.1x=11.57

x=11.57/0.1

x=115+0.07/0.1

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