The area of a rectangle = length * width
78 = length * 13

use a calculator to find out the answer then,
Answer:
About 175,956
Step-by-step explanation:
Take 51,300 and multiply it by 34.3% to get 175,956 registered doctors.
Step 1: Distribute. On the right side, you should get =2x-4
Step 2: Add all common bases. You should get 4x-5 on the left side
Step 3: Add on each side. For example, add five to each side of the equation. Your equation should look like this; 4x= 2x+1
Step 4: Subtract each x number by 2x. Your equation should be; 2x=1
Step 5: Divide each side by two. Your answer should be x=1/2 or x=0.5
Hope this helped!
Answer:
-5x+7=-38
-5x=-45
x=9
Step-by-step explanation: