-20=x(2)-5

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Solution for -20=x(2)-5 equation: 



-20=x(2)-5

We move all terms to the left:

-20-(x(2)-5)=0

We add all the numbers together, and all the variables

-(+x^2-5)-20=0

We get rid of parentheses

-x^2+5-20=0

We add all the numbers together, and all the variables

-1x^2-15=0

a = -1; b = 0; c = -15;
Δ = b2-4ac
Δ = 02-4·(-1)·(-15)
Δ = -60
Delta is less than zero, so there is no solution for the equation

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