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Simplify Equations

Simplify these equations
1) 2ab + 5a + 5ab - 2

2) 7nm - 3nm + 4bc + bc + 3

3) 7e + 2e + 4ef + 2g + ef + 4

4) 6 + 3ac + 6cb + 4 + 2cb + 9ac

5) 7a + 2b + 5a + 9b + 3a

6) 7pq + 7pq - 2nm - 7 + 5nm - pq

7) a + b + c + 2a +2ab + 3c + b + 5ab

8) 7k + 9k + 17c - 10k - 8c - 2k

9) 6xy - x - y + 3xy - 5x - 3y - 8

10) 3r + s + 3r - 6r + 9t + 4s + 8r + 15t

11) 11rs + 11st +12s + 15st + 4rs - 3

12) 17xy + 9xy + 8yz - 15xy - 2yz  
1) 7x - 8 + 6 = 33

2) - 7 + 1 + 3x = 9

3)  8x + 4 + 3 = 79

4) - 3 + 2x + 6 = 17

5) - 4 + 5x + x = 38

6) - 5 + 8 - 3x + 2x = 0



Answers to the above:

(1) x=5     (2) x=5


(3) x=9      (4) x=7

(5) x=7      (6) x=3
1) 6x + 3 = 27

2) n+ 5 = 73

3) n + 5 = 23

4) x - 6 = 19

5) 5a + 25 = 75

6) 6n - 21 = 21

7) 3x + 7 = 28

8)7n + 12 = 82

9) 5x - 6 = 29
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