Answer:
3x+12
Explanation:
Follow the PEMDAS/GEMDAS order. First, distribute the 2 to the numbers in the parenthesis:
2(x+6)-4+x
↓
2x+16-4+x
Then, subtract the numbers without a variable (the numbers without x):
2x+16-4+x
↓
2x+12+x
Then, add the variables together (the numbers with x):
2x+12+x
↓
3x+12
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