Question

1.(2×-4) +(-×+6)
2.(×-7)-(-8×+3)
3.(-3a-5)-(-9a-7)​

Answer 1

Jawaban:

1. (2x - 4) + (-x + 6)

= (2x + (-x) - (4 + 6)

= (2x - x) - 10

= x - 10

2. (x - 7) - (-8x + 3)

= (x - (-8x)) + (7 + 3)

= (x + 8x) + 10

= 9x + 10

3. (-3a - 5) - (-9a - 7)

= (-3a - (-9a)) + (5 - 7)

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

= 6a - 2

Semoga membantu^^