-(1/2)x-7=18

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Solution for -(1/2)x-7=18 equation: 



-(1/2)x-7=18

We move all terms to the left:

-(1/2)x-7-(18)=0



Domain of the equation: 2)x!=0

x!=0/1

x!=0

x∈R



We add all the numbers together, and all the variables

-(+1/2)x-7-18=0

We add all the numbers together, and all the variables

-(+1/2)x-25=0

We multiply parentheses

-x^2-25=0

We add all the numbers together, and all the variables

-1x^2-25=0

a = -1; b = 0; c = -25;
Δ = b2-4ac
Δ = 02-4·(-1)·(-25)
Δ = -100
Delta is less than zero, so there is no solution for the equation

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