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The solution is n = –2 verified as a solution to the equation 1.4n + 2 = 2n + 3.2. What is the last line of the justification?

Respuesta :

1.4n + 2 = 2n + 3.2
1.4(-2) + 2 = 2(-2) + 3.2
-2.8 + 2 = -4 + 3.2
- 0.8 = - 0.8

Answer: b

Step-by-step explanation: