Question

Encontre as expressões algebricas equivalentes :


a) 7 x + 3 x=

b) 8 b - 5 b

c)7y + y - 4 y

d) 5 x + 6 x + x

e)3 x - x - 9 x

Answer 1

7x+3x= 10x
8b-5b= 3b
7y+y-4y= 8y-4y= 4y
5x+6x+x= 12x
3x-x-9x= 2x-9x= -7x

Answer 2

a)

= 7 x + 3 x

= 4x

b)

= 8 b - 5 b

= 3b

c)

= 7y + y - 4 y

= 8y - 4y

= 4y

d)

= 5 x + 6 x + x

= 12x

e)

= 3 x - x - 9 x

= 2x - 9x

= - 7x