Giải hệ phương trình

To find the value of T + T, we need to first solve for the value of T in each equation.

From the first equation, S + T = 10, we can rearrange it to get T = 10 - S.

From the second equation, V + T = 5, we can rearrange it to get T = 5 - V.

From the third equation, C + T = 6, we can rearrange it to get T = 6 - C.

Now, we can substitute the value of T from each equation into T + T:

T + T = (10 - S) + (5 - V) + (6 - C) + (6 - C)

T + T = 10 - S + 5 - V + 6 - C + 6 - C

T + T = 27 - S - V - 2C

Therefore, T + T = 27 - S - V - 2C.