emmafought emmafought

21-09-2021
Mathematics

contestada

4.05x + 5.70(3x) = 423

Respuesta :

BiWolfie BiWolfie

21-09-2021

Answer:

x= 20

Step-by-step explanation:

5.70x3x=17.1x

17.1x+4.05x=21.15x

21.15x=423

423/21.15=20

x=20

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