(X+8)/(x+9)=4/5

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Solution for (X+8)/(x+9)=4/5 equation: 



(X+8)/(X+9)=4/5

We move all terms to the left:

(X+8)/(X+9)-(4/5)=0



Domain of the equation: (X+9)!=0

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

X!=-9

X∈R



We add all the numbers together, and all the variables

(X+8)/(X+9)-(+4/5)=0

We get rid of parentheses

(X+8)/(X+9)-4/5=0

We calculate fractions


(5X+40)/(5X+45)+(-4X-36)/(5X+45)=0

We multiply all the terms by the denominator


(5X+40)+(-4X-36)=0

We get rid of parentheses

5X-4X+40-36=0

We add all the numbers together, and all the variables

X+4=0

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

X=-4

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