-21=1/4-q

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Solution for -21=1/4-q equation: 



-21=1/4-q

We move all terms to the left:

-21-(1/4-q)=0



Domain of the equation: 4-q)!=0

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

-q)!=-4

q!=-4/1

q!=-4

q∈R



We add all the numbers together, and all the variables

-(-1q+1/4)-21=0

We get rid of parentheses

1q-21-1/4=0

We multiply all the terms by the denominator


1q*4-1-21*4=0

We add all the numbers together, and all the variables

1q*4-85=0

Wy multiply elements

4q-85=0

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

4q=85

q=85/4

q=21+1/4

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