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Mathematics
Ali Bowen
4 September, 21:40
Solve for x - 3x + 7=22
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Antony Anthony
5 September, 00:39
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X=5
subtract 7 on each side to get x-3x=15
then divide by 3 on each side to get x-x=5
the x's cancel so it's x=5
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Darian Blair
5 September, 01:09
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-7.5 = x
Explanation:
22 = x - 3x + 7
Subtract 7 from both sides:
22 - 7 = x - 3x + 7 - 7
15 = x - 3x
15 = - 2x
Divide by - 2 on both sides:
15 : - 2 = - 2x : - 2
-7.5 = x
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