wallinmamva
wallinmamva
04-09-2018
Mathematics
contestada
A- 13
B- 130
C- 43
D- 10
Respuesta :
Аноним
Аноним
04-09-2018
7x + 9 + 3x + 4 = 143
10x = 143 - 9 - 4
10x = 130
x = 13/10
x = 13 answer
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