18/20x+13=21

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Solution for 18/20x+13=21 equation: 



18/20x+13=21

We move all terms to the left:

18/20x+13-(21)=0



Domain of the equation: 20x!=0

x!=0/20

x!=0

x∈R



We add all the numbers together, and all the variables

18/20x-8=0

We multiply all the terms by the denominator


-8*20x+18=0

Wy multiply elements

-160x+18=0

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

-160x=-18

x=-18/-160

x=9/80

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