Answer:
x = 8
Step-by-step explanation:
3x - 20 = 4
add 20 to both sides
3x - 20 + 20 = 4 + 20
3x = 24
divide both sides by 3
= 
x = 8
Answer:
This comes out to 2 mph.
Step-by-step explanation:
Reduce the following fraction:
6 miles
---------------
3 hours
This comes out to 2 mph.
3x9=27
21/3 = 7
so
7+27x9+5
27x9=243
243+7+5
answer is 255
4(-9*x)
Multiply the two numbers
-36x
Final answer: -36x