Answer:
The Correct option is C. Addition Property of Equality.
For above Equation by Elimination we use
Addition Property of equality
Step-by-step explanation:
Given:
Addition Property of Equality :
The property that states that if you add the same number to both sides of an equation, the sides remain equal (i.e., the equation continues to be true.)
Here equation is given as
3x + 4y = 38
+ 5x - 4y = -30
-------------------------------------
8x = 8
------------------------------------
Here +4y and -4y gets cancelled or becomes 0 hence 8x = 8.
For above Equation by Elimination we use
Addition Property of equality
Answer:
B
Step-by-step explanation:
The question you have to ask yourself is why did the 2 disappear on the left and why did the 10 decrease in the right.
Whatever you did, you didn't multiply to accomplish that, and you didn't add, both of which would have made things larger.
That leaves B and D. You have to consider D carefully. If you divide, that would make 2 smaller on the left, but it would never make the 2 disappear.
It would also reduce the 10, but the problem is that division would have to effect the x as well.
The answer is that B should be chosen. If you subtract 2 from both sides, the 2 on the left will disappear and you will reduce the 10 to 8 on the right.
I know my answer is a bit convoluted, but I hope it helps.
17. you add all numbers together and divide them by however many numbers you had to add to get that number.
Answer:
I don't know ok bye bye see you
