Question

Simplify:(a-4)-(a+9)-(a-3)+(a+11)

Answer 1

Answer:

$(a - 4) - (a + 9) - (a - 3) \ + (a + 11) \\ = a - 4 - a - 9 - a + 3 + a + 11 \\ = 2a - 2a - 13 + 14 \\ = 1$

Answer 2

Answer:

a-4-a-9-a+3+a+11

a-a-a+a-4+9+3+11

0-a+a+5+3+11

0+5+3+11

19

Hope this helps