Question

Resolva a equação do 1° grau: 3 (t-5)+7t=5 ( 3-t)

Answer 1

3 (t - 5) + 7t = 5 (3- t)
3t - 15 + 7t = 15 - 5t
3t + 7t + 5t = 15 + 15
15t = 30
t = 30/15
t = 2

Answer 2

3 (t-5)+7t=5 ( 3-t)

3t -15 + 7t = 5 ( 3-t)
3t -15 + 7t = 15 - 5t
3t -15 + 7t + 5t = 15 
3t + 7t + 5t = 15 + 15
3t + 7t + 5t = 30
10t + 5t = 30
15t = 30
t = 30 / 15
t = 2