Question

What the answer to this "difficult" math equation?

1 + 1 + 2 + 2 + 3 + 3 + 4 + 4 + 5 + 5 + 6 + 6 + 7 + 7 + 8 + 8 + 9 + 9 + 10 + 10 - 90 =

Answer 1

Answer:

1 + 1 + 2 + 2 + 3 + 3 + 4 + 4 + 5 + 5 + 6 + 6 + 7 + 7 + 8 + 8 + 9 + 9 + 10 + 10 - 90 = 20

Step-by-step explanation:

Answer 2

Answer: 1+1+2+2+3+3+4+4+5+5+6+6+7+7+8+8+9+9+10+10-90=20

Step-by step explanation: