Solve the Equation $$7 x + 6 ( x + 1 ) = 13 ( x + 1 ) - 7$$

Multiple Choice

Solve the equation. Use words or set notation to identify equations that have no solution, or equations that are true for all
real numbers.
- $$7 x + 6 ( x + 1 ) = 13 ( x + 1 ) - 7$$

A) $\{ 0 \}$
B) $\varnothing$
C) $\{ x \mid x$ is a real number $\}$
D) $\{ 1 \}$