2/3n+7=7-n

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Solution for 2/3n+7=7-n equation:



2/3n+7=7-n
We move all terms to the left:
2/3n+7-(7-n)=0
Domain of the equation: 3n!=0
n!=0/3
n!=0
n∈R
We add all the numbers together, and all the variables
2/3n-(-1n+7)+7=0
We get rid of parentheses
2/3n+1n-7+7=0
We multiply all the terms by the denominator
1n*3n-7*3n+7*3n+2=0
Wy multiply elements
3n^2-21n+21n+2=0
We add all the numbers together, and all the variables
3n^2+2=0
a = 3; b = 0; c = +2;
Δ = b2-4ac
Δ = 02-4·3·2
Δ = -24
Delta is less than zero, so there is no solution for the equation

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