The mathematical expression 9 ∉ t means:
9 union t
9 intersection t
9 is an element of t
9 is not an element of t

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Ответ:

QueenNerdy889

08.12.2022

Mathematics

n=-20

Step-by-step explanation:

1) Subtract 2 from both sides.

$\frac{n}{2} =-8-2$

2) Simplify −8−2 to −10.

$\frac{n}{2} =-10$

3) Multiply both sides by 2.

n=-10*2

4) Simplify 10 * 2 to 20.

n=-20

Therefor, the answer is n = - 20.

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The mathematical expression 9 ∉ t means: 9 union t9 intersection t9 is an element of t9 is not an element of t