0
Anonymous
Eight 9s do not equal 100. 9 + 9 + 9 + 9 + 9 + 9 + 9 + 9 = 72
Wiki User
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99 plus 9/9 = 100
One way: 99 + 9/9 = 100
Eleven.
20
You have to combine equal terms. -5r-9s+9r+3s-6 = -5r+9r-9s+3s-6 = 4r-6s-6