Step-by-step explanation:
1- 3t - 8 = 8t + 12 collect the like terms and put them to one side (all terms with x on the left and the others on the right side) (convert + to - or reversed when you move from side e.g -4 becomes 4 or reversed)
2- 3t-8t=8+12 calculate both sums
3- -5t=20 divide both numbers by the number remaining at the right side so in this case -5.
4= t= -4
