avilesestefanie15 avilesestefanie15

25-09-2020
Mathematics

contestada

|3x-7| + 7 = 9 What is the first solution?

Plzzz help

Respuesta :

mhanifa mhanifa

25-09-2020

Answer:

3 and 5/3

Step-by-step explanation:

Solving in steps:

|3x-7| + 7 = 9
|3x-7| = 2

1. If 3x - 7 > 0

3x - 7 = 2
3x = 9
x = 3

2. If 3x - 7 < 0

3x - 7 = -2
3x = 5
x = 5/3

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