Hi friend,
(5t + 2x) + -3t = 0
(5t + 2x) 5t + 2x + -3t = 0
: 5t + -3t + 2x = 0
5t + -3t = 2t 2t + 2x = 0
2t + 2x = 0
'-2x' to each side of the equation. 2t + 2x + -2x = 0 + -2x
2x + -2x = 0 2t + 0 = 0 + -2x 2t = 0 + -2x
: 2t = -2x
'2'. t = -1x
t = -1x
Hope it helps....