Question

question 3 (1 point)
solve the following equation:
$3(2a + 3) = 45$
only write the number for your answer!
$a = $
blank 1:

Explanation:

Step1: Divide both sides by 3

To isolate the term with \(a\), we divide both sides of the equation \(3(2a + 3)=45\) by 3.
\[
\frac{3(2a + 3)}{3}=\frac{45}{3}
\]
Simplifying both sides, we get \(2a + 3 = 15\).

Step2: Subtract 3 from both sides

Next, we subtract 3 from both sides of the equation \(2a+3 = 15\) to isolate the term with \(a\).
\[
2a+3 - 3=15 - 3
\]
Simplifying both sides, we get \(2a=12\).

Step3: Divide both sides by 2

Finally, we divide both sides of the equation \(2a = 12\) by 2 to solve for \(a\).
\[
\frac{2a}{2}=\frac{12}{2}
\]
Simplifying both sides, we get \(a = 6\).

Answer:

6