In this situation t=10
3(t+4)-2(2t+3)=-4
This can be simplified to
3t+12-4t-6=-4
Which can be simplified further to
-1t+6=-4
-6 -6. (Subtract 6 on each side)
To finally get -1t=-10
Then divide by -1 to get a positive t.
t=10.
Hope this helps.
