Perform the indicated operations. $( 10 x + 6 ) - ( 5 x - 2 ) + ( 4 x + 4 )$
A) $9 x + 8$
B) $- 9 x - 8$
C) $- 9 x + 12$
D) $9 x + 12$
E) $9 x - 12$

Question

Quizplus · Accepted Answer

We can simplify the given expression by combining like terms. 
\begin{align*}
( 10 x + 6 ) - ( 5 x - 2 ) + ( 4 x + 4 ) &= 10x + 6 - 5x + 2 + 4x + 4 \
&= (10x - 5x + 4x) + (6 + 2 + 4) \
&= 9x + 12 
\end{align*}
Thus, the correct answer is D.

Perform the Indicated Operations (10x+6)−(5x−2)+(4x+4)( 10 x + 6 ) - ( 5 x - 2 ) + ( 4 x + 4 )(10x+6)−(5x−2)+(4x+4)

Perform the Indicated Operations $( 10 x + 6 ) - ( 5 x - 2 ) + ( 4 x + 4 )$