Question

 how do i solve equation for x  T=1/3 (x-y+z)

Answer 1

T = 1/3 (x-y+z)
T = 1/3x - 1/3y + 1/3z
T + 1/3y - 1/3z = 1/3x
3T + y -z = x

x = 3T + y -z

Answer 2

$T=\frac13(x-y+z)\ /\cdot 3\\ 3T=x-y+z\\ 3T+y-z=x\\ x=3T+y-z$