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Mathematics

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Answer :

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Answer:

A: -10

B: 7

Solution:

A: 2(x+3) = x - 4

1. 2x + 6 = x - 4

2. 2x = x -10

3. x = -10

B: 4(5x - 2) = 2(9x + 3)

1. 20x - 8 = 18x + 6

2. 20x = 18x + 14

3. 2x = 14

4. x = 7

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