21=1/2c+11

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Solution for 21=1/2c+11 equation: 



21=1/2c+11

We move all terms to the left:

21-(1/2c+11)=0



Domain of the equation: 2c+11)!=0

c∈R



We get rid of parentheses

-1/2c-11+21=0

We multiply all the terms by the denominator


-11*2c+21*2c-1=0

Wy multiply elements

-22c+42c-1=0

We add all the numbers together, and all the variables

20c-1=0

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

20c=1

c=1/20

c=1/20

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