21=-2/3x-13

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Solution for 21=-2/3x-13 equation: 



21=-2/3x-13

We move all terms to the left:

21-(-2/3x-13)=0



Domain of the equation: 3x-13)!=0

x∈R



We get rid of parentheses

2/3x+13+21=0

We multiply all the terms by the denominator


13*3x+21*3x+2=0

Wy multiply elements

39x+63x+2=0

We add all the numbers together, and all the variables

102x+2=0

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

102x=-2

x=-2/102

x=-1/51

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