Question

Reduza os termos semelhantes

a)5x-2x+6x+8x
b)10ab-5+ab-7ab
c)5a-3b-6a-a+5b
d)0,8y-2,4y+y-y/4
e)10k-9k-12k-3k+10k
f)12y+23y-13y-y
g)8x-12x+20x-32x
h)7y-3z+(5w-w+z)

Answer 1

a)5x-2x+6x+8x = 17x

b)10ab-5+ab-7ab = - ab 

c)  5a-3b-6a-a+5b = - 2a + 2b

d) 0,8y-2,4y+y-y/4 = - 2,2y-y/4 ==> (-8,8y-y)/4 ==> - 9,8y/4

e)10k-9k-12k-3k+10k = - 4k

f)12y+23y-13y-y = 21y

g)8x-12x+20x-32x =  - 16x

h)7y-3z+(5w-w+z) = 7y-3z+5w-w+z ==. 7y - 2z + 4w