First distribute the 3 so you'll have:
12+12x=12x+12
Next you subtract 12 from both sides and you'll get:
12x=12x
then you divide both sides by 12 and you get:
x=x
Since BD is the angle bisector of ∠ ABC,
∠ ABD = ∠ CBD --- (1)
Now, in triangles Δ ABD and Δ CBD,
BD = BD (common side)
∠ ABD = ∠ CBD from (1)
AB = BC (Given)
Hence, Δ ABD ≅ Δ CBD (SAS Rule).
Answer:
m = variables
+4 = Coefficients
-7 = Coefficients
and 2 and 6 are Constants
Hope this helps!
Step-by-step explanation:
Answer: x= 1, 
Step-by-step explanation:
The quadratic equation is

and

So we just need to sub in the proper numbers from the equation given, in this case, it would result in

and

Once we get this we can either manually simplify or use a calculator, using a calculator would result in the answers
x= 1, 
The slope of line PQ is m1 = ( 3 - (-3) ) / (2 - (-2) ); then m1 = 6/4 = 3/2;
In the same way, the slope of line RS is m2 = -7/5;
But (3/2) x (-7/5) = -21/10, which is diferrent from - 1;
So, the lines aren't perpendicular.