The solution is r= 7/a-x How did i do this?
Your equation is ax+ r=7, so the goal is to isolate the r. You begin by dividing the a from the ax. Remember, what you do to one side, you must do to the other. So you do 7/a, since you can't simplify 7/a, leave it as it is. Next, your equation should look like this x+r=7/a. In order to isolate the r, you move the x to the other side by subtracting, which leaves you with the answer of r= 7/a-x.
Hope this helped!
Answer:

Step-by-step explanation:
The altitude falls in the middle of the line.
So, the point at which it falls in the bottom line is the midpoint, so the length of the blue triangle would be 6/2 = 3
So, the blue triangle has length of 3 and height of H and hypotenuse of 10.
Now, we will use Pythagorean Theorem to solve for H. The theorem is:
Leg^2 + Another Leg^2 = Hypotenuse^2
We know one leg of the triangle is 3 and another leg is H and hypotenuse is 10, so we substitute and solve:

This is the exact answer for H
Answer:
The answer is m = 36
Step-by-step explanation:
m/4 - 66 = -57
m - 264 = -228
m = -228 + 264
m = 36
Answer:
Step-by-step explanation:
(-12+50)/(-2-3)+72/(4+2)
simplify: 38/67/6
multiply by the reciprocal: 38/67*6/1
you get: 228/67
decimal: 3.402985075