Question 657637

I am trying to solve this equation.  Our teacher told us the answer should be 
-6, but I keep coming up with -5.  Could you please help me figure out what I'm doing wrong?  The equation is 7 + 2(a - 3) = -9


I also got - 5.

If the answer's - 6, you might have copied the wrong equation.


7 + 2(a - 3) = - 9
7 + 2a - 6 = - 9
2a + 1 = - 9
2a = - 9 - 1
2a = - 10


a = {{{(- 10)/2}}}, or {{{highlight_green(- 5)}}}


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