15-(1/2)x=21

Solution for 15-(1/2)x=21 equation:

15-(1/2)x=21

We move all terms to the left:

15-(1/2)x-(21)=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+15-21=0

We add all the numbers together, and all the variables

-(+1/2)x-6=0

We multiply parentheses

-x^2-6=0

We add all the numbers together, and all the variables

-1x^2-6=0

a = -1; b = 0; c = -6;
Δ = b2-4ac
Δ = 02-4·(-1)·(-6)
Δ = -24
Delta is less than zero, so there is no solution for the equation