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Alyssa
Mathematics
20 October, 09:38
3 (2x-5) = 21
What is x?
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Ryan Chang
20 October, 09:43
0
X=6 is your answer.-.
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Devan Bird
20 October, 09:58
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You would solve a problem like this:
3 (2x-5) = 21
6x-15=21 ... I multiplied 2x and - 5 by 3
6x-15=21
6x-15+15=21+15 ... I added 15 to both sides so 6x can be alone
6x=36
6x/6=36/6 ... I divided by 6 from both sides to leave x alone to get the answer:
x=6.
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