2.25(a+ 1.3) = 20.7

Question

whats the value of a

Answer 1

To solve the equation \( 2.25(a + 1.3) = 20.7 \), follow these steps:

1. Divide both sides by 2.25 to isolate the expression inside the parentheses:

   \[ a + 1.3 = \frac{20.7}{2.25} \]

2. Calculate the right side:

   \[ \frac{20.7}{2.25} = 9.2 \]

   Now the equation looks like this:

   \[ a + 1.3 = 9.2 \]

3. Subtract 1.3 from both sides to solve for \( a \):

   \[ a = 9.2 - 1.3 \]

4. Calculate the value of \( a \):

   \[ a = 7.9 \]

So, the value of \( a \) is \( \boxed{7.9} \).