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Which of the statements describes the solution set for -2(x + 8) = -2x + 20? 


A) x = - 2 only 
B) x = 0 only 
C) x = 20 only 
D) There are no solution for this equation. 
E) All real numbers are solutions of this equation.
Dec 22nd, 2014

Expand the term on the left hand term of the equation

-2x - 16 = - 2x + 20 

Add -2x to both sides of the equation

-2x - 16 + 2x = - 2x + 20 + 2x 

-16 = 20 

The last statement is always false, hence the given equation has no solution.

Dec 22nd, 2014

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Dec 22nd, 2014
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