Solve the equation.

Question

a plus 3 ​= 9
Question content area bottom
Part 1
A.minus 12
minus12
B.12
12
C.6
6
D.minus 6
minus6

Answer 1

To solve the equation \( a + 3 = 9 \), you need to isolate the variable \( a \).

1. Subtract 3 from both sides of the equation:

\[ a + 3 - 3 = 9 - 3 \]

This simplifies to:

\[ a = 6 \]

Now, let's look at the answer choices:

A. -12
B. 12
C. 6
D. -6

The correct answer is C. 6.