45+9/4r=-45

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Solution for 45+9/4r=-45 equation: 



45+9/4r=-45

We move all terms to the left:

45+9/4r-(-45)=0



Domain of the equation: 4r!=0

r!=0/4

r!=0

r∈R



We add all the numbers together, and all the variables

9/4r+90=0

We multiply all the terms by the denominator


90*4r+9=0

Wy multiply elements

360r+9=0

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

360r=-9

r=-9/360

r=-1/40

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