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4-8x+3x^{3}D=3x-2
To multiply powers of the same base, add their exponents. Add 2 and 1 to get 3.
-8x+3x^{3}D=3x-2-4
Subtract 4 from both sides.
-8x+3x^{3}D=3x-6
Subtract 4 from -2 to get -6.
3x^{3}D=3x-6+8x
Add 8x to both sides.
3x^{3}D=11x-6
Combine 3x and 8x to get 11x.
\frac{3x^{3}D}{3x^{3}}=\frac{11x-6}{3x^{3}}
Divide both sides by 3x^{3}.
D=\frac{11x-6}{3x^{3}}
Dividing by 3x^{3} undoes the multiplication by 3x^{3}.