Question

a) 6x + 2x - 2
b) 7y - 8 - 5y - 1
c) 4x - 8x + x
d) 3x – 8x +9
e) 4x - 3+ (2x + 1)
f) (x + y) + (x + y)
g) (3x – 2y) + (7x + y)
h) (8a + 4) + (3a + 2)
i) 5a + (3a - 2)
j) 6x + (5x - 7)
k) (x + y +z) + x​

Answer 1

Resposta:Segue as contas abaixo na explicação

Explicação passo-a-passo:

a) 6x + 2x - 2 -->8x-2

b) 7y - 8 - 5y - 1 -->2y-9

c) 4x - 8x + x -->5x-8x-->-3x

d) 3x – 8x +9 -->-5x+9

e) 4x - 3+ (2x + 1) -->4x-3+2x+1-->6x-2

f) (x + y) + (x + y) -->x+y+x+y-->2x+2y

g) (3x – 2y) + (7x + y) -->3x-2y+7x+y-->10x-y

h) (8a + 4) + (3a + 2) -->8a+4+3a+2-->11a+6

i) 5a + (3a - 2) -->5a+3a-2-->8a-2

j) 6x + (5x - 7) -->6x+5x-7-->11x-7

k) (x + y +z) + x​-->x+y+z+x-->2x+y+z