romero71
romero71 romero71
  • 19-08-2019
  • Mathematics
contestada

Simplify, THEN evaluate for x = 3, y = -4, and z= -2.
7(x - y) - 3(2 + 2x)

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tramserran
tramserran tramserran
  • 19-08-2019

Answer:  25

Step-by-step explanation:

   7(x - y) - 3(2 + 2x)

= 7x - 7y  - 6  - 6x

=   x - 7y  - 6

for x = 3, y = -4

      3 - 7(-4) - 6

=     3 + 28  - 6

=         31     - 6

=             25

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