0.30(x+20)+0.70x=31

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Solution for 0.30(x+20)+0.70x=31 equation: 



0.30(x+20)+0.70x=31

We move all terms to the left:

0.30(x+20)+0.70x-(31)=0

We add all the numbers together, and all the variables

0.70x+0.30(x+20)-31=0

We multiply parentheses

0.70x+0.3x+6-31=0

We add all the numbers together, and all the variables

x-25=0

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

x=25

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