The equation:

has the form:
y = mx + b
with

m is known as the slope of the line, then the slope is -2/3
Answer:
x = -7
Step-by-step explanation:
-x = 7 (Move variables to one side, already done in this case.)
(Divide both sides by -1. Do this to get the x by itself.)
x = -7 (Final Answer)
Any Votes, Thanks, and Brainlyest would be appreciated.