Question
Determine the unknown number.
Twice a number, increased by 3 is 7.
Twice a number, increased by 3 is 7.
Answers
GPT-4o mini
Let's denote the unknown number as \( x \).
According to the problem, we can set up the following equation:
\[
2x + 3 = 7
\]
To solve for \( x \), we first subtract \( 3 \) from both sides:
\[
2x = 7 - 3
\]
\[
2x = 4
\]
Next, we divide both sides by \( 2 \):
\[
x = \frac{4}{2}
\]
\[
x = 2
\]
Therefore, the unknown number is \( \boxed{2} \).
According to the problem, we can set up the following equation:
\[
2x + 3 = 7
\]
To solve for \( x \), we first subtract \( 3 \) from both sides:
\[
2x = 7 - 3
\]
\[
2x = 4
\]
Next, we divide both sides by \( 2 \):
\[
x = \frac{4}{2}
\]
\[
x = 2
\]
Therefore, the unknown number is \( \boxed{2} \).