Answer:
a = 3
Step-by-step explanation:
2a + 2b + 2c
= (a + b) + (b + c) + (c + a)
= 5 + 6 + 7
= 18.
Hence, a + b + c = 9 and a = (a + b + c) - (b + c) = 9 - 6 = 3.
i hope this helps
1
it is 6/6
if it is right brainliest pls thanks
Answer
A) 2(4+5)
2(9)
18
B) 2(10+2)
2(12)
24
C) 4*5
20
D) 10*2
