Convert the differential equation $x^{\text{'}\text{'}\text{'}}=4x^{\text{'}\text{'}}-2x^{\text{'}}-3x+t$ into a system of first order equations by letting $u_1=x,u_2=x^{\text{'}},u_3=x^{\text{'}\text{'}}$

Note: Type u$\_1,$ u$\_2,$ u$\_3,$ and $t$ to write your variables.

$u_1^{\text{'}}=$

$u_2^{\text{'}}=$

$u_3^{\text{'}}=$