Question

1. Reduza os termos semelhantes.

(1) 7x - 5x + 3x
(2) 2x - x - 10x
(3) 4x + x - 7x
(4) 8x -10x + 4x

Answer 1

Resposta:

A)20+(3x-4)=

20 + 3x -4 =

3x + 16.

B) 8x² - 6- (5-7x²)

8x² -6-5+7x²

15x² -1

C) 10a²-(-a²-4a+5)

10a² + a² +4a -5

11a² + 4a -5

D) 5x+(7x-12)-(20+4x)

5x + 7x -12 -20 -4x

8x -32

E) 8x+(0,5x) - (-1,2x)

8x + 0,5x + 1,2x

9.7x

F) 1 y/3 - 4y/3 + 1 x/2 - 3x/2 =

-3y/3 -2x/2 =

-y -x