Respuesta :

emc376

Answer:

first is 3, then 8, then it's 2

Answer:

1. a = 3

2. a = 8

3. c = 2

Step-by-step explanation:

7a x 8 = 168

  • 56a = 168       <-- 7a x 8 =56
  • (56a)/56 = 168/56      <-- divide both sides by 56
  • a = 3

7 + 2a = 23

  • (7 + 2a) - 7 = 23 - 7     <-- subtract 7 from both sides
  • 2a = 16
  • (2a) / 2 = 16/2       <-- divide both sides by 2
  • a = 2

6c + 8c = 28

  • 14c = 28       <-- 6c + 8c = 14c
  • c = 2      <-- divide both sides by 14
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