Question

sederhanakanlah.

2. (2x+9) + (4x-3)

3. (4a + 5) + (-2a + 8)

4. (-7a - 1) + (a + 4)

5. (-7 + 5x) + (2 - 5x)

6. (3/5x - 2/3) + (2/5x + 1/3)​

Answer 1

Penjelasan dengan langkah-langkah:

1. (2x+9) + (4x-3)

= 2x + 9 + 4x - 3

= 6x + 6

2. (4a + 5) + (-2a + 8)

= 4a + 5 - 2a + 8

= 2a + 13

3. (-7a - 1) + (a + 4)

= -7a - 1 + a + 4

= -6a + 3

4. (-7 + 5x) + (2 - 5x)

= -7 + 5x + 2 - 5x

= -5

5. (3/5x - 2/3) + (2/5x + 1/3)

= (3/5x + 2/5x) + (-2/3 + 1/3)

= 5/5x + (-1/3)

= 1/x - 1/3

Jadi, pecahan sederhananya adalah:

1. 6x + 6

2. 2a + 13

3. -6a + 3

4. -5

5. 1/x - 1/3