Let us simplify all the expression (righ-hand side) by combining like terms. Then, we will match it will the expression on the left-hand side.
First Expression
[tex]\begin{gathered} -5t+8+t \\ =-4t+8 \end{gathered}[/tex]
** This matches with the 2nd expression on left-hand side
Second Expression
[tex]\begin{gathered} 2t-t-4-3t-5 \\ =2t-t-3t-4-5 \\ =-2t-9 \end{gathered}[/tex]
Third Expression
[tex]\begin{gathered} -t+3+3t-12 \\ =-t+3t+3-12 \\ =2t-9 \end{gathered}[/tex]
Fourth Expression
[tex]\begin{gathered} 1-9t+7+6t+7t \\ =1+7-9t+6t+7t \\ =8+4t \end{gathered}[/tex]
