3 x + 9 = 44 - 2 x
subtract 9 from both sides:
3 x + 9 - 9 = 44 - 2x - 9
3 x = -2 x +35
Add 2 x to both sides:
3 x + 2 x = -2 x + 35 + 2 x
5 x = 35
Divide both sides by 5 :
5x / 5 = 35/ 5
x = 7
hope this helps!
<h3>Given : </h3>
- Base of triangle = 8 cm
- Height of triangle = 4 cm

<h3>To Find : </h3>

<h3>Solution :</h3>
As, we have :
- Base of triangle, b = 8 cm
- Height of triangle, h = 4 cm

So, to find area of triangle we have a formula :






Hence, area of given triangle is 16 cm².
<em>Answer</em><em> </em><em>is</em><em> </em><em>-220</em>
<em>if</em><em> </em><em>you</em><em> </em><em>have</em><em> </em><em>any</em><em> </em><em>doubts</em><em> </em><em>see</em><em> </em><em>the</em><em> </em><em>image</em><em> </em>
- Midpoint formula is
.
<h3>19.</h3>
So starting with this one, we will be solving for the coordinates of the unknown endpoint separately. Starting with the x-coordinate, since we know that the midpoint x-coordinate is 5 and the x-coordinate of N is 2, our equation is set up as such:
From here we can solve for the x-coordinate of Q.
Firstly, multiply both sides by 2: 
Next, subtract both sides by 2 and your x-coordinate is 
With finding the y-coordinate, it's a similar process as with the x-coordinate except that we are using the y-coordinates of the midpoint and endpoint N.

<u>Putting it together, the missing endpoint is (8,4).</u>
<em>(The process is pretty much the same with the other problems, so I'll go through them real quickly.)</em>
<h3>20.</h3>


<u>The missing endpoint is (7,2).</u>
<h3>21.</h3>


<u>The missing endpoint is (-5,1).</u>