In this problem why is the easiest to substitute.
Just set the equations equal to each other because they both equal y
-x + 4 = 2x - 8
(You want to get all the x's to one side so add x to each side)
4 = 3x - 8
(next add 8 to both sides)
12 = 3x
(lastly divide 3 from both sides)
4 = x
You have got your x so now it is time to find that y just replace x to either of the two equations
y = 2(4) -8 or y = -(4) + 4
y = 8 - 8 y = 0
y = 0
Final Answer: y=0, x=4
Answer:
The answer is 9 weeks I typed the answer fast. How because 12+(n-1)(6) would turned to 60=12+6(n-1) and that will turn to 48=6(n-1) and that will turn to 8= n-1 so n=9 weeks.
Answer:
It takes 3.5 cups of pancake mix and 2.625 cups of water to make 21 pancakes.
Step-by-step explain
First divide each by 6 to figure out how much mix and water it takes to make one pancake
1/6 mix + .125 cups water = 1 pancake
Multiple each by 21 to know how much mix and water it takes to make 21 pancakes
3.5 mix + 2.625 water = 21 pancakes
Answer:
2
Step-by-step explanation:
2/3x + 8/3 = 2x
multiplicate each by 3 : 2x + 8 = 6x
Put all the x on the same side : 8 = 4x
divide each by 4 : 2 = x
x = 2
