Answer:
4x-12
Explanation:
x+3x-6-6
4x-6-6
Answer: 3
x + 3( x - 2) - 6 = 0
x + 3x - 6 - 6 = 0
4x - 12 = 0
4x = 12
dividing both sides by 4
x = 12/ 4
x = 3
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