SOLUTION: Use the ideas of additive and multiplicative inverses of rational numbers to solve the following equation: 3x-4=x+12

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Question 376243: Use the ideas of additive and multiplicative inverses of rational numbers to solve the following equation:

3x-4=x+12
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

3x-4=x+12 

3x + -x - 4 = x + -x +12

2x - 4 = 12

2x -4 + 4 = 12 + 4

2x = 16

%281%2F2%292x+=+%281%2F2%29%2A16

x = 8