solve:x/4 + x/6 = x - 7
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Answer:
x/4 + x/6 = x-7
3x + 2x /12 = x-7
5x/12 = x - 7
5x = (x-7)× 12
5x = 12x - 84
5x - 12x = -84
-7x = -84
x = -84/-7
x = 12
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