Question

a+b+c=2[(a-b)+(a-c)] what does a=

Answer 1

a+b+c = 2[a-b+a-c]
a+b+c = 2[2a-b-c]
a+b+c= 4a-2b-2c
a -4a = -2b-b-c -2c
-3a = -3b -3c
3a = 3b + 3c
a = (3b+3c)/3
a = b+c

Answer 2

http://www.algebrahelp.com/calculators/equation/calc.do?equation=a%2Bb%2Bc%3D2%5B%28a-b%29%2B%28a-c%29%5D&solvf=AUTO

Answer 3

Thank you so much :)