caroretanaox0n0c
caroretanaox0n0c caroretanaox0n0c
  • 17-10-2019
  • Mathematics
contestada

Please help with this math problem

Please help with this math problem class=

Respuesta :

rtankus
rtankus rtankus
  • 17-10-2019

Answer:

-15

Step-by-step explanation:

Given:

  • x=-7
  • -14+7=x+8

Simply plug in and see if the statement is true. If not, isolate x.

Test for truth:

  • -14+7=-7+8
  • -7=1
  • NOT true.

Isolate x in original equation:

  • -14+7=x+8
  • -14+7-8=x
  • -7-8=x
  • -15=x
Answer Link
Amedina200201 Amedina200201
  • 17-10-2019

B. X=-15

Step-by-step explanation:-14+7=-7 and -15+8=-7

Answer Link

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