Question 219424
No!  In your second step the 2 divides out on the left side of the equation!


It should look like this:


(1-x)/2 = 7

2[(1-x)/2] = 7*2
1-x = 14
-x = 13
x = -13


Check your answer:
{{{(1-(-13))/2}}}
{{{14/2}}}
{{{7}}}


R^2


Dr. Robert J. Rapalje