jvr2312
jvr2312
23-09-2020
Mathematics
contestada
if 3x +y=12 find x when y=-15
Respuesta :
bellazaldivar22
bellazaldivar22
23-09-2020
Answer:
x=9
Step-by-step explanation:
3x+y=12
3x+(-15)=12
3x=27
3/3= 27/3
x=9
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