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4-(2/7)*w=18
We move all terms to the left:
4-(2/7)*w-(18)=0
Domain of the equation: 7)*w!=0We add all the numbers together, and all the variables
w!=0/1
w!=0
w∈R
-(+2/7)*w+4-18=0
We add all the numbers together, and all the variables
-(+2/7)*w-14=0
We multiply parentheses
-2w^2-14=0
a = -2; b = 0; c = -14;
Δ = b2-4ac
Δ = 02-4·(-2)·(-14)
Δ = -112
Delta is less than zero, so there is no solution for the equation
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