To solve for x in the equation 9x + 9x - 21 = 33, we can simplify the equation by combining like terms:
18x - 21 = 33
Next, we can isolate the term with x by adding 21 to both sides of the equation:
18x = 54
Finally, we can solve for x by dividing both sides of the equation by 18:
x = 3
Therefore, the solution to the equation is x = 3.
Solve for x
9x + 9x - 21 = 33
X = 6
X = 3
X = 8
X = 1
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