Question

bantu jawabb,besok dikumpullin​

Answer 1

Jawaban:

1).

5x + 2x

= (5+2) x

= 7x

2).

-y - 4y

= (-1 -4) y

= -5y

3).

9a - 6a

= (9-6) a

= 3a

4). maaf aku kurang tau

5). sama kayak no 4

6).

4/5 − 5/1

= 4-1 / 5

=3/5

( "/" artinya per)

7).

4x + 7 + 5x + 8

= (4+5)x + (7 + 8)

= 9x + (7+8)

8).

2x - 12 - 6x + 15

= (2+6)x + (-12 + 15)

= -4x + (-12 + 15)

= -4x + 3

9).

-3a + 5 + 9a - 2

= (-3 + 9) a + (5-2)

= 6a + (5-2)

= 6a + 3

10).

-a + 2 - 3 - 8a

= (-1 - 8)a + (2-3)

= -9a + (2-3)

= -9a - 1