870=20+1.30x

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Solution for 870=20+1.30x equation: 



870=20+1.30x

We move all terms to the left:

870-(20+1.30x)=0

We add all the numbers together, and all the variables

-(1.30x+20)+870=0

We get rid of parentheses

-1.30x-20+870=0

We add all the numbers together, and all the variables

-1.3x+850=0

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

-1.3x=-850

x=-850/-1.3

x=653+1/1.18181818182

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