4/3(15-21x)+x=7

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Solution for 4/3(15-21x)+x=7 equation: 



4/3(15-21x)+x=7

We move all terms to the left:

4/3(15-21x)+x-(7)=0



Domain of the equation: 3(15-21x)!=0

x∈R



We add all the numbers together, and all the variables

4/3(-21x+15)+x-7=0

We add all the numbers together, and all the variables

x+4/3(-21x+15)-7=0

We multiply all the terms by the denominator


x*3(-21x+15)-7*3(-21x+15)+4=0

Wy multiply elements

3x^2(--21x(-+4=0

We use the square of the difference formula

3x^2(+21x(-4=0

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