beatriz233 beatriz233

15-12-2018
Mathematics

contestada

Can someone help me on this question?

Can someone help me on this question class=

Respuesta :

15-12-2018

Answer:

31

Step-by-step explanation:

3x + 7 = 131 - x

3x + x = 131 - 7

4x = 124

x = 124/4

x = 31

I hope I helped you

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