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Mathematics
Freddy
12 September, 11:56
If (x+3) + 3 (x-1) = 20, what is the value of x
+5
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Kiera Brady
12 September, 12:50
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1 (x + 3) + 3 (x - 1) = 20
1 (x) + 1 (3) + 3 (x) - 3 (1) = 20
x + 3 + 3x - 3 = 20
x + 3x + 3 - 3 = 20
4x = 20
4 4
x = 5
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