x+7/21=-1

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Solution for x+7/21=-1 equation: 



x+7/21=-1

We move all terms to the left:

x+7/21-(-1)=0

We add all the numbers together, and all the variables

x+1+7/21=0

We multiply all the terms by the denominator


x*21+7+1*21=0

We add all the numbers together, and all the variables

x*21+28=0

Wy multiply elements

21x+28=0

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

21x=-28

x=-28/21

x=-1+1/3

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