-11=-18-x2

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Solution for -11=-18-x2 equation: 



-11=-18-x2

We move all terms to the left:

-11-(-18-x2)=0

We add all the numbers together, and all the variables

-(-1x^2-18)-11=0

We get rid of parentheses

1x^2+18-11=0

We add all the numbers together, and all the variables

x^2+7=0

a = 1; b = 0; c = +7;
Δ = b2-4ac
Δ = 02-4·1·7
Δ = -28
Delta is less than zero, so there is no solution for the equation

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