Answer:
answer E
Step-by-step explanation:
Answer:
x=2, y=5 or (2,5)
Step-by-step explanation:
The elimination method is adding or subtracting two equations from each other to get rid of a variable.
I am going to get rid of y first.
2y-2x=3
-2y+5x=3
When you use elimination to add and subtract, you get the equation:
3x=6
Simplify for:
x=2
There are two ways to find y. The easier way is to plug x=2 back into one of the original equations and solve, or you can use elimination again. To use elimination to find y:
First we have to make it so that our x's will add or subtract to 0 in the two original equations by multiplying.
5 * (2y-2x=3) = 10y-10x=15
2 * (-2y+5x=3) = -4y+10x=15
Adding those two equations together will give us:
6y=30
Simplify:
y=5
Answer:
b
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
To make your equation, you basically write all the steps down with x as your number and then set it equal to 34 (wow, that was very confusing, sorry!). This means that your equation would be (5x-3)2=34. Now, you'll solve this by starting with distributing the 2 (2*5x and 2*-3), which will give you the equation 10x-6=34. Next, add six to both sides (10x-6+6=10x and 34+6=40), so you should get 10x=40. Lastly, divide both sides by 10 (10x/10=x and 40/10=4) to get x=4. I'd also advise checking your answer by multiplying 4 by 5 (20), then subtracting 3 (20-3=17), and multiplying it by 2 (2*17=34). :)