Let x be the unknown number
2x +7 = 39
2x+7-7 = 39-7
2x = 32
2x/2 = 32/2
x=16
You use the balance method to solve. First, you cancel the +7 by subtracting the 7 ON BOTH SIDES to balance the equation.. After that, you are left with 2x, where you will need to isolate the x by dividing by 2 ON BOTH SIDES to balance it.
Hope this helps
Answer:
D. 
Step-by-step explanation:
We graph the points on the graph. The graph is attached.
Let us take two points (1, 14) and (15, 1), and calculate the slope
between them <em>(we choose these points because the line passing through them will be the best fit for all points) </em>

Thus we have the equation

Let us now calculate
from the point 


So the equation we get is

Let us now turn to the choices given and see which choice is closest to our equation: we see that choice D.
is the closest one, so we pick it.
Answer:
2=p
Step-by-step explanation:
-5p+7=5p-13
+5p +5p
7=10p-13
+13 +13
20=10p
÷10 ÷10
2=p
The answer would be if you were solving for y. Y= 1/2x+3/8
Answer:
that's good for you xD congrats