1/4a=90

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Solution for 1/4a=90 equation: 



1/4a=90

We move all terms to the left:

1/4a-(90)=0



Domain of the equation: 4a!=0

a!=0/4

a!=0

a∈R



We multiply all the terms by the denominator


-90*4a+1=0

Wy multiply elements

-360a+1=0

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

-360a=-1

a=-1/-360

a=1/360

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