Question

Which is a solution to the equation -2x + 10 = -30?

A:-40

B:-10

C:15

D:20

Answer 1

To find the solution to the equation \(-2x + 10 = -30\), we need to solve for \(x\).

1. Start with the original equation:
\[
-2x + 10 = -30
\]

2. Subtract 10 from both sides:
\[
-2x = -30 - 10
\]
\[
-2x = -40
\]

3. Divide both sides by -2:
\[
x = \frac{-40}{-2}
\]
\[
x = 20
\]

The solution to the equation is \(x = 20\).

So, the correct answer is **D: 20**.