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Fynjy0 [20]
3 years ago
9

How do I solve systems by elimination

Mathematics
2 answers:
Otrada [13]3 years ago
6 0

Answer: The most frequent way you can use it is subtracting!

Step-by-step explanation:

Lorico [155]3 years ago
3 0
In order to use the elimination method, you have to create variables that have the same coefficient—then you can eliminate them. Multiply the top equation by 5. Now multiply the bottom equation by −3. Next add the equations, and solve for y.
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Express as a single fraction a/b+b/b - b/a-a/a​
Harrizon [31]

Answer:

a exponent 2-b exponent 2

ab

5 0
3 years ago
Total revenue is 3,000 cost of goods 1,500 total selling expence is 500 what is profit
12345 [234]
Cost of goods = 1,500
Selling expense = 500

Total cost in selling = 1500 + 500 = 2000

Profit = Total Revenue - Total cost in selling = 3000 - 2000 = 1000

Profit = 1000

Hope this explains it.
8 0
3 years ago
Read 2 more answers
4 times a number added to -5 is the same as the sum of twice the number and 11. What is the number?
Alexus [3.1K]
Let x = the number you need to find.

4x + (-5) = 2x + 11

You finish.
4 0
4 years ago
9⁄11 = ?⁄22 <br><br> A. 4<br> B. 18<br> C. 12<br> D. 9
Brums [2.3K]
The answer is B) 9/11 = 18/22 would make the best answer because the rest don't have any solutions at all because since your trying to make it equal, It just possibly wont do since its false.
3 0
3 years ago
Read 2 more answers
I will mark you as BRANLIEST and I will give you 55 points if you answer correctly.
KIM [24]

Answer:

1. x = 2    y = 1

2. x = 17   y = 29/3

Step-by-step explanation:

1. Use elimination

-4x+3y=-5

4x-5y=3

x's cancel, so add them

-2y = -2

y = 1

substitute

4x -5(1) = 3

4x - 5 = 3

4x = 8

x = 2

2. Use elimination  

2x+3y=36

10x-6y=12

Multiply top equasion by 5

10x+30y = 360

10x-6y = 12

x's cancel so subract

36y = 348

y = 29/3

Substitute

2x+3(2/3)=36

2x+2 = 36

2x = 34

x = 17

7 0
3 years ago
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