Which set notation correctly expresses the solution set to the equation 31−9x=4 ?

Question

{x=3} left brace x equals 3 right brace ​ (x=3) ​ left parenthesis x equals 3 right parenthesis {3} left brace 3 right brace (3) left parenthesis 3 right parenthesis

Answer 1

{x=3}

Answer 2

Trey, Amelia, and Cho are discussing the solution set to the equation x2+9=45 . Trey says the solution is {6} . Amelia says the solution is {−6,6} . Cho says the solution is {−6} . Which person has found the correct solution set?
Trey
None of them are correct
Cho
Amelia

Answer 3

Amelia has found the correct solution set. The equation x^2 + 9 = 45 can be rewritten as x^2 = 36, which means x can either be -6 or 6. Therefore, the correct solution set is {-6, 6}.

Answer 4

The values −1 and 1 make the equation 3x2+7=10 true. Use set notation to express the solution to the equation.
{x=−1,x=1} ​ left brace x equals negative 1 comma x equals 1 right brace {−1,1} left brace negative 1 comma 1 right brace (x=−1,x=1) left parenthesis x equals negative 1 comma x equals 1 right parenthesis (−1,1)

Answer 5

{x = -1, x = 1}

Answer 6

The solution set of the inequality 3(b−4)+2b>3 is the set of values of b greater than three. Which set notation correctly expresses the solutions?
{b:b>3} left brace b colon b greater than 3 right brace {b:b<3} left brace b colon b less than 3 right brace {b:b>15} left brace b colon b greater than 15 right brace {b:b<15}

Answer 7

{b : b > 3}

Answer 8

What value falls in the solution set of the inequality −3(4k+1)<15 ?
-4 negative 4 −32 Start Fraction negative 3 over 2 End Fraction −5 negative 5 −1

Answer 9

-4