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Tyrese Dyer
Mathematics
10 December, 19:11
Twice a number decreased by 20 is 50.
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Larry Frank
10 December, 19:20
0
The number is 35.
Step-by-step explanation:
Let the number be x
Twice the number: 2*x = 2x
Twice the number decreased by 20: 2x - 20
2x - 20 = 50
Add 20 to both sides
2x - 20 + 20 = 50 + 20
2x = 70
Divide both sides by 2
2x/2 = 70/2
x = 35
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