21/2x=-10

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Solution for 21/2x=-10 equation: 



21/2x=-10

We move all terms to the left:

21/2x-(-10)=0



Domain of the equation: 2x!=0

x!=0/2

x!=0

x∈R



We add all the numbers together, and all the variables

21/2x+10=0

We multiply all the terms by the denominator


10*2x+21=0

Wy multiply elements

20x+21=0

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

20x=-21

x=-21/20

x=-1+1/20

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