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Which equation is true for the value a = 7? a + 2(a – 3) = 15 4a – 4(14 – a) = 24 2a + 47 = 105 3a + 2(a – 3) = 34 4a – 2a = 18
The equation that is true for the value a = 7 is: a + 2(a – 3) = 15. a + 2(a – 3) = 15 a + 2a - 6 = 15 3a = 15 + 6 = 21 a = 21/3 = 7
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Asked 1/15/2015 9:33:22 AM
Updated 1/15/2015 9:51:44 AM
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The equation that is true for the value a = 7 is: a + 2(a – 3) = 15.
a + 2(a – 3) = 15
a + 2a - 6 = 15
3a = 15 + 6 = 21
a = 21/3 = 7
Added 1/15/2015 9:51:44 AM
This answer has been confirmed as correct and helpful.
Confirmed by yumdrea [1/15/2015 10:12:17 AM]
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