Terminology
Expression- No equal sign
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Variable- Mathematical term of letters
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Coefficient- A number just before the letter
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Constant- A number that is alone
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- The letters must be in alphabetical order
- When the letters are the same, add the numbers and leave the same letter
2a+5a=7a
4c+5c=9c
7p-4p=3p
ab+2ab=3ab
2a+4c+5c+5a=7a+9c
3f+2g+4f+7g=7f+9g
2a+3a2+4a=3a2+6a
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