Question

Simplificação de expressões algébricas:
1)15a-18b-b+6a-10a+14b-16a+8b=
2)-8x+10y-12y+y+6y-10x-9y+5y+x=

Answer 1

1)15a-18b-b+6a-10a+14b-16a+8b==> 15a+6a-10a-16a -18b-b+14b+8b

==> - 5a + 3


2)-8x+10y-12y+y+6y-10x-9y+5y+x= -8x-10x+x +10y-12y+y+6y-9y+5y 

==> - 17x + y