sevans593
sevans593
07-10-2020
Mathematics
contestada
7x+12 = (x+3 )+ (x+4)
Respuesta :
Defourthkitten028
Defourthkitten028
07-10-2020
Answer:
-1
Step-by-step explanation:
7x+12=(x+3)+(x+4)
7x+12=2x+7
5x+12=7
5x=-5
x=-1
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