Add the sides together and u get 19!
The equation of the circle shown is:
<h3>What is the equation of a circle?</h3>
The equation of a circle of center 
and radius r is given by:
From the graph, it can be seen that the center of the circle is (0,0), thus 
and the radius is of r = 10, hence the equation is:
You can learn more about the equation of a circle at brainly.com/question/24307696
Given expression: 3x+9
Take 3 outside from the expression, we get,
= 3(x+3), which is called the equivalent expression
Answer:
n * 7
7n
Step-by-step explanation:
both are multiplying 7 and the number n
Well first you substitute -3 for y and then subtract 12 from both sides of the equation and it should look like -15=-3x. Then divide 3 on both sides and you should end up getting 5=x.
