Answer:
slope is 2
Step-by-step explanation:
first add -14x like...
-14x+7y=-9
+14x +14x
7y=14x-9
divide 7 by the who equation
/7
y=2x-9/7
5x-10
3x-4+2x-6
group like terms
3x+2x -4--6
-5