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what is c
5a-b+c= -10
a-3b-c= -4
2a+4b-2c= 12


Answer :

Answer:

{5a-b+c=10}

{a-3b-c=-4

[2a+2b-c=6

Step-by-step explanation: so it's 6 hope this helps. Let me know if it helps and give brainliest.