Answer:
the answer is 6
Step-by-step explanation:
2x + 9 = 21
2x = 21 - 9
2x = 12
x = 6
X=−13
Distribute
Subtract
simplify
divide both sides
then simplify again to arrive at your answer.
I'm assuming you mean to list the terms of the expression. Those are mn, -2n, and +8. There are 3 terms there.
Answer:
DATTEBAYOOO
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Step-by-step explanation: