[tex]\text{Hey there!}[/tex]
[tex]\text{Simply the equation: 5x + 8 - 13y - 4x - 18 + 16y}[/tex]
[tex]\text{First you have to combine the \bf{like-terms}}[/tex]
[tex]\text{5x-4x = 1x}[/tex]
[tex]\text{-13y + 16y = 3y}[/tex]
[tex]\text{8 + (-18) = -10}[/tex]
[tex]\boxed{\boxed{\bf{Answer: 1x + 3y - 10}}}\checkmark[/tex]
~[tex]\frak{LoveYourselfFirst:)}[/tex]