Answer:
x=4
Step-by-step explanation:
-5(4-x)=-5x+20
We simplify the equation to the form, which is simple to understand
-5(4-x)=-5x+20
Reorder the terms in parentheses
+(-20+5x)=-5x+20
Remove unnecessary parentheses
-20+5x=-5x+20
We move all terms containing x to the left and all other terms to the right.
+5x+5x=+20+20
We simplify left and right side of the equation.
+10x=+40
We divide both sides of the equation by 10 to get x.
x=4
Answer:
11
Step-by-step explanation:
6+(2x+28)=x+23=-11 -> Answer can't be negative -> 11
Answer:
Step-by-step explanation:
Using the quadratic formula:
We will have two solutions:
-3x^2-x-3=0 a=-3 b=-1 c=-3
We have:
we can write:
The solutions are not real numbers.
So, we know:
Finally we have:
You would beee to do 20/0.8 which would give you 25 water stations in total.
Hope that helped