3(x-1)=4(2x+1)/5

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Solution for 3(x-1)=4(2x+1)/5 equation: 



3(x-1)=4(2x+1)/5

We move all terms to the left:

3(x-1)-(4(2x+1)/5)=0

We multiply parentheses

3x-(4(2x+1)/5)-3=0

We multiply all the terms by the denominator


3x*5)-(4(2x+1)-3*5)=0

We add all the numbers together, and all the variables

3x*5)-(4(2x+1)=0

Wy multiply elements

15x^2=0

a = 15; b = 0; c = 0;
Δ = b2-4ac
Δ = 02-4·15·0
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$x=\frac{-b}{2a}=\frac{0}{30}=0$

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