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Kiara Acosta
Mathematics
3 June, 15:50
Four times a number is 21 more than the number
+2
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1
)
Edgar Duncan
3 June, 16:20
0
The number is 7
Step-by-step explanation:
4 multiplied by a number (N)
4 X N
Is equal to 21 more than the number
21 + N
4 X N = 21 + N
4N = 21 + N
Subtract N from both sides
3N = 21
Divide by 3
N = 7
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