Final answer:
To solve the equation 3(3x+4)-6x=-9, distribute the 3, combine like terms, isolate the variable, and solve for x. The solution is x = -7.
Step-by-step explanation:
To solve the equation 3(3x+4)-6x=-9, we can start by distributing the 3 to the terms inside the parentheses:
9x+12-6x=-9
Next, combine like terms on the left side of the equation:
3x+12=-9
Then, subtract 12 from both sides to isolate the variable:
3x=-21
Finally, divide both sides by 3 to solve for x:
x=-7
Learn more about solving linear equations