15x+4=(1/2)5x+7

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Solution for 15x+4=(1/2)5x+7 equation: 



15x+4=(1/2)5x+7

We move all terms to the left:

15x+4-((1/2)5x+7)=0



Domain of the equation: 2)5x+7)!=0

x!=0/1

x!=0

x∈R



We add all the numbers together, and all the variables

15x-((+1/2)5x+7)+4=0

We multiply all the terms by the denominator


15x*2)5x+7)-((+4*2)5x+7)+1=0

We add all the numbers together, and all the variables

15x*2)5x+7)-(85x+7)+1=0

Wy multiply elements

30x^2=0

a = 30; b = 0; c = 0;
Δ = b2-4ac
Δ = 02-4·30·0
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$x=\frac{-b}{2a}=\frac{0}{60}=0$

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