Question
The product of 10 and the sum of a number and - 1 is negative - 40 find the number
A. -5
B. 5
C. 3
D. -3
A. -5
B. 5
C. 3
D. -3
Answers
GPT-4o mini
Let the unknown number be represented by \( x \). According to the problem, we have the equation:
\[
10 \times (x + (-1)) = -40
\]
This simplifies to:
\[
10 \times (x - 1) = -40
\]
Next, divide both sides by 10:
\[
x - 1 = -4
\]
Now, we solve for \( x \) by adding 1 to both sides:
\[
x = -4 + 1
\]
\[
x = -3
\]
Thus, the number is:
\[
\boxed{-3}
\]
The correct answer is D. -3.
\[
10 \times (x + (-1)) = -40
\]
This simplifies to:
\[
10 \times (x - 1) = -40
\]
Next, divide both sides by 10:
\[
x - 1 = -4
\]
Now, we solve for \( x \) by adding 1 to both sides:
\[
x = -4 + 1
\]
\[
x = -3
\]
Thus, the number is:
\[
\boxed{-3}
\]
The correct answer is D. -3.