Question

Which number line represents the solution to the inequality 1 + 2x < -7?

Answer 1

Answer:

$\boxed {x < -4}$

Step-by-step explanation:

Solve the following inequality:

$1 + 2x < -7$

-Subtract $1$ to both sides:

$1 - 1 + 2x < -7 - 1$

$2x < -8$

-Divide both sides by $2$:

$\frac{2x}{2} < \frac{-8}{2}$

$\boxed {x < -4}$

The number line: