Respuesta :

ThatGuyInADogCostume

Answer:

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.

Step-by-step explanation:

keilonmcalester

Answer:

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

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