alyssa2006z
alyssa2006z
22-11-2019
Mathematics
contestada
-4x+y= 6
-5x-y=21 what is the answer
Respuesta :
bentyfilms
bentyfilms
22-11-2019
Answer:
x=15
Step-by-step explanation:
21-6=15
-4x+y=-5x-y=15
x+y=-y=15
x=15
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