1/7(x-21)+1/4(x+4)=x-9

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Solution for 1/7(x-21)+1/4(x+4)=x-9 equation: 



1/7(x-21)+1/4(x+4)=x-9

We move all terms to the left:

1/7(x-21)+1/4(x+4)-(x-9)=0



Domain of the equation: 7(x-21)!=0

x∈R





Domain of the equation: 4(x+4)!=0

x∈R



We get rid of parentheses

1/7(x-21)+1/4(x+4)-x+9=0

We calculate fractions


-x+(4xx/(7(x-21)*4(x+4))+(7xx/(7(x-21)*4(x+4))+9=0

We can not solve this equation

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