If a+b+c = 10, a+b=7, a-b = 5, what is the value of c?

The value of c is 2

Step-by-step explanation:

a+b+c=10 a+b=7 a-b=5

a + b = 7 a - b = 5 a + b = 7 a - b = 5

-b - b + b + b - a - a - a - a

a = 7 - b a = 5 + b b = 7 - a - b = 5 - a

7 - b = 5 + b 7 - a = - 5 + a

+b + b + a + a

7 = 5 + 2b 7 = - 5 + 2a

-5 - 5 + 5 + 5

2 = 2b 14 = 2a

1 = b 7 = a

7 + 1 + c = 10

8 + c = 10

-8 - 8

c = 2

based on the first 2 examples it gave, c should be equal to 3. the last one does not seem to be needed for the answer, and is probably just there to make it harder sort of.