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Algebra
Biology
100
x + 5 = 10
What is x = 5
100
organisms are composed of this
What is matter
200
x - 17 = 30
What is x = 47
200
There are 92 of these
What is elements
300
2x = 10
What is x = 5
300
"O" is the symbol for this element
What is Oxygen
400
2x + 10 = 30
What is x = 10
400
This is the smallest unit of matter
What is atom
500
2x + 2x - 10 = 14
What is x = 6
500
Electrons have this type of charge
What is negative