9t+t=7000

To solve the equation 9t + t = 7000, we first combine like terms:

9t + t = 10t

The equation now becomes:

10t = 7000

To solve for t, we divide both sides of the equation by 10:

10t/10 = 7000/10

t = 700

Therefore, the solution to the equation 9t + t = 7000 is t = 700.