To solve the equation \( ax - 12 = 9 \), follow these steps:
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Add 12 to both sides: \[ ax - 12 + 12 = 9 + 12 \] \[ ax = 21 \]
-
Divide both sides by \( a \): \[ x = \frac{21}{a} \]
Thus, the correct answer is: C. \( x = \frac{21}{a} \).
A. x = - 21/a
B. x = - 3/a
C. x = 21/a
D. x = 3/a
3 answers
To solve the equation \( ax - 12 = 9 \), follow these steps:
Add 12 to both sides: \[ ax - 12 + 12 = 9 + 12 \] \[ ax = 21 \]
Divide both sides by \( a \): \[ x = \frac{21}{a} \]
Thus, the correct answer is: C. \( x = \frac{21}{a} \).
Yes, let's double-check the solution step by step to ensure it's correct.
Given the equation:
\[ ax - 12 = 9 \]
Add 12 to both sides: \[ ax = 9 + 12 \] \[ ax = 21 \]
Divide both sides by \( a \) (assuming \( a \neq 0 \)): \[ x = \frac{21}{a} \]
So, the solution to the equation is indeed:
\[ x = \frac{21}{a} \]
Conclusion: The answer is C. \( x = \frac{21}{a} \).