Question 1119509
There are 2 things I see that contribute to confusion:
(1) You use the same symbol for "times' as the 
variable "x" You probably should have used "*" to
mean "times"
(2) You multiplied minus times minus and got minus
( should be plus )
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{{{ y - 5 = (-2/3)*( x-3 ) }}}
{{{ y - 5 = (-2/3)*x + (-2/3)*(-3) }}}
{{{ y - 5 = (-2/3)*x + 2 }}}
{{{ y = (-2/3)*x + 7 }}}