42.70=3.10+1.80x

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Solution for 42.70=3.10+1.80x equation: 



42.70=3.10+1.80x

We move all terms to the left:

42.70-(3.10+1.80x)=0

We add all the numbers together, and all the variables

-(1.80x+3.1)+42.70=0

We add all the numbers together, and all the variables

-(1.80x+3.1)+42.7=0

We get rid of parentheses

-1.80x-3.1+42.7=0

We add all the numbers together, and all the variables

-1.8x+39.6=0

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

-1.8x=-39.6

x=-39.6/-1.8

x=+22

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