Let X Represent the Number $4 x - 7 x = 55 ; - 7.9$

Multiple Choice

Let x represent the number. Use the given conditions to write an equation. Solve the equation and find the number.
-Four times a number added to 7 times the number equals 55. Find the number.

A) $4 x - 7 x = 55 ; - 7.9$
B) $4 ( x + 7 ) = 55 x ; 0.5$
C) $4 x ( 7 + x ) = 55 ; 7.9$
D) $4 x + 7 x = 55 ; 5$