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Mathematics
15 October, 09:26
Solve the equation 3x - 1 = 20
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Beckham Estrada
15 October, 09:48
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Although the answer from Cindie17 is correct you can also do this:
3x-1=20, subtract 1 from both sides and get 3x=21, then divide both sides by 3 so 3x/3 = x and 21/3=7
thus, x=7
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Gummi Bear
15 October, 09:49
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3x-1=20
3*7=21-1=20
The answer would be x=7
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