How do you solve 4( t - 1) + 2( t - 4) = 18?

1 Answer
Jun 29, 2017

t = 5

Explanation:

4(t-1) + 2(t-4) = 18

4t - 4 + 2t- 8 = 18

4t - 4 + 2t = 18 + 8

4t + 2t = 26 + 4

6t = 30

(color(red)(cancel(color(black)(6)))t) /color(red)(cancel(6)) = 30/6

color(blue)(t = 5

Now we can input the number to prove that t = 5.

4(5 -1) + 2(5 -4) = 18

4 xx 4 + 2 xx 1 = 18

16 + 2 = 18