[tex] \colorbox{red}{quis}[/tex]
5y + 10x - 9y + 2x
=
note : kok sepii
5y + 10x - 9y + 2x
= (10x + 12x) + (5y - 9y)
= 12x - 4y
100 Things to Know About Planet Earth (100 Things to Know)
100 Things to Know About Planet Earth (100 Things to Know)
5y + 10x - 9y + 2x
= (10x + 12x) + (5y - 9y)
= 12x - 4y