0,8x-30/100=420

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Solution for 0,8x-30/100=420 equation: 



0.8x-30/100=420

We move all terms to the left:

0.8x-30/100-(420)=0

determiningTheFunctionDomain
0.8x-420-30/100=0

We multiply all the terms by the denominator


(0.8x)*100-30-420*100=0

We add all the numbers together, and all the variables

(+0.8x)*100-30-420*100=0

We add all the numbers together, and all the variables

(+0.8x)*100-42030=0

We multiply parentheses

0x-42030=0

We add all the numbers together, and all the variables

x-42030=0

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

x=42030

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