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Valerie Roberson
Mathematics
1 October, 23:29
X+3X+7 when x equals 9
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Malakai
1 October, 23:38
0
43
Step-by-step explanation:
Put x = 9 to the expression x + 3x + 7 = 4x + 7
4 (9) + 7 = 36 + 7 = 43
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Jolie Christensen
1 October, 23:55
0
43
Step-by-step explanation:
(9) + 3 (9) + 7
9+27+7=43
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