Solve: 7 - 2(3 X - 7) = -4 X $x = \frac { 1 } { 6 }$

Multiple Choice

Solve: 7 - 2(3 x - 7) = -4 x - 2 x + 21. If the equation is an identity or a contradiction, so indicate.

A) no solution; a contradiction
B) $x = \frac { 1 } { 6 }$
C) $x = 10$
D) all real numbers; an identity