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3(3x+4)−6x=−9

solve the equation

1 answer

Starting with the given equation:
3(3x+4) - 6x = -9

Distribute the 3 to the terms inside the parentheses:
9x + 12 - 6x = -9

Combine like terms:
9x - 6x + 12 = -9

Combine like terms again:
3x + 12 = -9

Subtract 12 from both sides:
3x = -9 - 12

Simplify:
3x = -21

Divide both sides by 3:
x = -21/3

Simplify the fraction:
x = -7
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