Respuesta :

3t - 7 = 5t   Subtract 3t from both sides
    - 7 = 2t   Divide both sides by 2
    [tex] -\frac{7}{2} [/tex] = t

Now, plug the t-value into 6t.

6t   Plug in the t-value
6 ([tex]- \frac{7}{2} [/tex])   Multiply
[tex]- \frac{6 x 7}{2} [/tex]   Multiply 6 and 7
[tex] -\frac{42}{2} [/tex]   Divide
-21

t = [tex] -\frac{7}{2} [/tex] , 6t = -21