4x – 12, when x = -7 is the same thing as 4(-7) - 12, which equals -40. Your answer is -40.
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Updated 2/21/2014 11:49:10 AM
Confirmed by andrewpallarca [2/21/2014 11:49:10 AM]
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Question
Updated 7/16/2014 11:40:23 AM
4x – 12, x = -7

= 4(-7) - 12
= -28 - 12
= -40
3x^2 + 2x – y, x = -3 and y = 9

3(-3)^2 + 2(-3) - 9
= 3(9) - 6 - 9
= 27 - 6 - 9
= 12
27,357,976
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