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Maxine
Mathematics
7 January, 04:19
What is the solution for - 2 = - (n-8) ?
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Troy Obrien
7 January, 04:36
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N=10 (If your looking for the variable)
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Esmeralda Hart
7 January, 04:43
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The trick here is to remove the brackets carefully. Once you have done that the problem is almost solved.
- 2 = - (n - 8) Multiply both terms inside the brackets by - 1
-1 * n = - n
-1 * - 8 = + 8 Be very careful with that. Make sure you understand that two minus's make a plus.
- 2 = - n + 8 Add n to both sides.
-2 + n = - n + n + 8
-2 + n = 8 Add 2 to both sides.
-2 + 2 + n = 8 + 2
n = 10
You should check this.
-2 = - (10 - 8)
-2 = - (2)
- 2 = - 2 and it checks.
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