7x/(5x+8)=7/9

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Solution for 7x/(5x+8)=7/9 equation: 



7x/(5x+8)=7/9

We move all terms to the left:

7x/(5x+8)-(7/9)=0



Domain of the equation: (5x+8)!=0

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

5x!=-8

x!=-8/5

x!=-1+3/5

x∈R



We add all the numbers together, and all the variables

7x/(5x+8)-(+7/9)=0

We get rid of parentheses

7x/(5x+8)-7/9=0

We calculate fractions


63x/(45x+72)+(-35x-56)/(45x+72)=0

We multiply all the terms by the denominator


63x+(-35x-56)=0

We get rid of parentheses

63x-35x-56=0

We add all the numbers together, and all the variables

28x-56=0

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

28x=56

x=56/28

x=2

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