Question

Reduza os termos semelhantes nas seguintes expressões algébricas
Conta completaaaa
a) 5a + (3a -2) – (10a – 8) =
b) 6x + (5x -7) – (20 + 3x ) =
c) (x + y + z) + x – (3y + z) =
d) (m + 2n ) – ( r – 2n) – ( n+ r) =
e) – (6y + 4x ) + ( 3y – 4x ) – (-2x + 3y) =

Answer 1

a)5a+3a-2-10a+8=
5a+3a-10a-2+8=
-2a+6
b)6x+5x-7-20-3x=
6x+5x-3x-7-20=
8x-27
c)x+y+z+x-3y-z=
x+x+y-3y+z-z=
2x-2y
d)m+2n-r+2n-n-r=
m+2n+2n-n-r-r=
m+3n-2r
e)-6y-4x+3y-4x+2x-3y=
-4x-4x+2x-6y+3y-3y=
-6x-3y