miaecastillo
miaecastillo
19-03-2020
Mathematics
contestada
CAN YOU please help me
Respuesta :
TenzinTsesang
TenzinTsesang
19-03-2020
Answer:
x=12
Step-by-step explanation:
(x+42)+3x=90
4x=90-42
4x=48
x=48/4
x=12
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