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3/2(x)+2(x+7)=15
We move all terms to the left:
3/2(x)+2(x+7)-(15)=0
Domain of the equation: 2x!=0We multiply parentheses
x!=0/2
x!=0
x∈R
3/2x+2x+14-15=0
We multiply all the terms by the denominator
2x*2x+14*2x-15*2x+3=0
Wy multiply elements
4x^2+28x-30x+3=0
We add all the numbers together, and all the variables
4x^2-2x+3=0
a = 4; b = -2; c = +3;
Δ = b2-4ac
Δ = -22-4·4·3
Δ = -44
Delta is less than zero, so there is no solution for the equation
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