Answer:
X=-3
Step-by-step explanation:
5x - 9
-2x + 12
(+) (-)
7x = -21
X= -3
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Answer:
Irrational
Step-by-step explanation:
.1212 repeated is irrational because 1, it cannot be written as a fraction and 2, it will never end.
➣ Assignment: 
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➣ Answer: 
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Explanation: ↓↓↓↓↓
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➤ [ Step One ] Follow PEMDAS Order Of Operations

➤ [ Step Two ] Rewrite Equation

➤ [ Step Three ] Calculate Within Parenthesis

➤ [ Step Four ] Rewrite Equation

➤ [ Step Five ] Multiply

➤ [ Step Six ] Rewrite Equation

➤ [ Step Seven ] Calculate Exponents

➤ [ Step Eight ] Rewrite Equation

➤ [ Step Nine ] Solve

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