-7(4-x)=9+(2x/3)

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Solution for -7(4-x)=9+(2x/3) equation: 



-7(4-x)=9+(2x/3)

We move all terms to the left:

-7(4-x)-(9+(2x/3))=0

We add all the numbers together, and all the variables

-7(-1x+4)-(9+(+2x/3))=0

We multiply parentheses

7x-(9+(+2x/3))-28=0

We multiply all the terms by the denominator


7x*3))-(9+(+2x-28*3))=0

We add all the numbers together, and all the variables

7x*3))-(9+(2x-84))=0

We add all the numbers together, and all the variables

7x*3))-(9+(2x=0

Wy multiply elements

21x^2=0

a = 21; b = 0; c = 0;
Δ = b2-4ac
Δ = 02-4·21·0
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$x=\frac{-b}{2a}=\frac{0}{42}=0$

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