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10 October, 07:22

3

To solve 2x + 9 = 21, what is the first step?

А. Dividing each side by 2

B

Dividing each side by x

С

Subtracting 21 from each side

D

Subtracting 9 from each side

+3
Answers (1)
  1. 10 October, 08:40
    0
    Answer: D. Subtracting 9 from each side

    Step-by-step explanation:

    Always start with numbers without variables first before doing anything with x. And make sure one side must not equal 0 unless you're doing polynomials.
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