Solve the following step by step with explanation

4(-x+5)=40

-3(-4+x)= -16

2(2x+6)=20

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1. Answer:

   4(-x+5) = 5

   => -4x + 20 = 5

   => -4x = 5-20

   => -4x = -15

   => 4x = 15

   => x = 15/4

   -3(-4+x) = -16

   => 12-3x = -16

   => -3x = -16-12

   => -3x = -28

   => 3x = 28

   => x = 28/3

   => x = 7

   2(2x+6) = 20

   => 4x+12 = 20

   => 4x = 20-12

   => 4x = 8

   => x = 8/4

   => x = 2

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