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To substitute 2 for x, we replace every instance of x in the expression with 2:
3(2 - 7) + 4
Next, we simplify the expression within the parentheses:
3(-5) + 4
Now we can perform the remaining operations:
-15 + 4
Finally, we add the two numbers to get the final result:
-11
Therefore, the expression evaluates to -11.