Question

If 3t-7=5t, then 6t=

Answer 1

3t - 7 = 5t   Subtract 3t from both sides
    - 7 = 2t   Divide both sides by 2
    $-\frac{7}{2}$ = t

Now, plug the t-value into 6t.

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

t = $-\frac{7}{2}$ , 6t = -21