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3x^{2}-3=3\left(x+\frac{10}{3}\right)\left(x-1\right)
Subtract 10 from 7 to get -3.
3x^{2}-3=\left(3x+10\right)\left(x-1\right)
Use the distributive property to multiply 3 by x+\frac{10}{3}.
3x^{2}-3=3x^{2}+7x-10
Use the distributive property to multiply 3x+10 by x-1 and combine like terms.
3x^{2}-3-3x^{2}=7x-10
Subtract 3x^{2} from both sides.
-3=7x-10
Combine 3x^{2} and -3x^{2} to get 0.
7x-10=-3
Swap sides so that all variable terms are on the left hand side.
7x=-3+10
Add 10 to both sides.
7x=7
Add -3 and 10 to get 7.
x=\frac{7}{7}
Divide both sides by 7.
x=1
Divide 7 by 7 to get 1.