# Maths

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- Created by: goalkeeperjinny15
- Created on: 29-04-14 20:33

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- Mathmatics
- Algebra
- Km=1.6 x miles
- Circumference= pie x diameter
- to simplify an expression you collect like terms
- 4x+5x-2-2x+7= 7x+5
- adding and subtracting is the opposite of each other
- Multiplying and dividing is the opposite of each other
- For example: x-6=9
- what we do: x-6+6=9+6 x= 15

- Solve: 3c+5=c+15
- 1st: subtract c from both sides: 2c+5=15
- 2nd: subtract 5 from both sides: 2c= 10. divide both sides by 2 to get c. 2c/2=5/2
- Answer is C= 5

- 2nd: subtract 5 from both sides: 2c= 10. divide both sides by 2 to get c. 2c/2=5/2

- 1st: subtract c from both sides: 2c+5=15

- Algebra

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