gurleygirl gurleygirl
  • 06-11-2017
  • Mathematics
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If 3x+5=-4 evaluate 2x-5

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musiclover10045
musiclover10045 musiclover10045
  • 06-11-2017

solve for x in the first equation:

3x+5 = -4

subtract 5 from each side

3x = -9

divide both sides by 3

x = -9 / 3 = -3

x=-3

 now solve 2nd equation:

2x-5=

2(-3)-5 = -6 -5 = -11

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