Question
2a+39=90 what dose a =
Answers
GPT-4o mini
To find the value of \( a \) in the equation \( 2a + 39 = 90 \), follow these steps:
1. Subtract 39 from both sides:
\[
2a + 39 - 39 = 90 - 39
\]
This simplifies to:
\[
2a = 51
\]
2. Now, divide both sides by 2:
\[
a = \frac{51}{2}
\]
Which simplifies to:
\[
a = 25.5
\]
So, the value of \( a \) is \( 25.5 \).
1. Subtract 39 from both sides:
\[
2a + 39 - 39 = 90 - 39
\]
This simplifies to:
\[
2a = 51
\]
2. Now, divide both sides by 2:
\[
a = \frac{51}{2}
\]
Which simplifies to:
\[
a = 25.5
\]
So, the value of \( a \) is \( 25.5 \).