Question

We are trying to solve for 2t-8 for t=21. My son thinks it’s 84. I don’t see how that is. Making sure I don’t guide him down the wrong path!!

Answer 1

Answer:36

Step-by-step explanation:

2t-8 for t=21

Use 21 for t

2(21)-8

42-8

36

Answer 2

Answer: 34

Step-by-step explanation:

2t - 8, where t = 21

This can also be written as :

2(21) - 8

= 42- 8

= 34

Ans = 34