1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Fed [463]
4 years ago
5

How do I do this?? Help!

Mathematics
2 answers:
Shkiper50 [21]4 years ago
7 0

Hi there!

In order to use the elimination method, you have to create one variable that has the same coefficient. This is to be able to eliminate one variable and have a one variable equation (which you can then solve).

In your case, we'll have the "x" have the same coefficient by multiplying the top equation by 4 and the bottom equation by 2 :

4( -2x + 3y = -4) → -8x + 12y = -16

2( 4x - 2y = 16) → 8x - 4y = 32


Now that both of your equation have a variable with the same coefficient, you need to choose rather you need to add or subtract the equations in order to get rid of the variable (in this case we want to get rid of the "x").

In your case, you want to add both equation together which will give you :

8y = 16


Now that you only have one variable, all you need to do now is solve the equation for "y" :

8y = 16

Divide each side of the equation by 8

y = 2 → Your answer


There you go! I really hope this helped, if there's anything just let me know! :)


nignag [31]4 years ago
7 0
This is how I did it.

You might be interested in
A restaurant charges $10 for a medium pizza and $1 for each topping what is the proportion
notsponge [240]

Answer:

1/11 if you mean the proportion of the cost of the topping to the cost of the whole pizza

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Select all pairs of numbers that have LCM of 18?
spayn [35]
Only C and D....................
8 0
4 years ago
20{5[100-2(25+25)+20)]
svetoff [14.1K]
20{5[100-2(50)+20]}
20{5[100-100+20]}
20{5[20]}
20(100)
20000
3 0
3 years ago
How do you solve -10x+2(3x+5)=-2x? <br>4(5x-12)-7x=5x?
Serjik [45]
For the first one I got X=5
and for the second one I got X=6

6 0
3 years ago
3(x-5)&lt;=30how do you solve this problem
earnstyle [38]

The way that it is written is odd.

If the problem was 3(x-5)=30, it would be 3x-15=30.

Add 15 to both sides.

3x=45

Divide both sides by 3.

x=15

If it's supposed to be 3(x-5)<30, your answer would be the same, except:

x<15.

I'm not sure why it has both signs, especially next to each other.

I hope this helps :)

4 0
3 years ago
Other questions:
  • What is the first step in solving 12 (9+5) - 6 (3)?
    6·1 answer
  • Just before a referendum on a school​ budget, a local newspaper polls 402 voters to predict whether the budget will pass. Suppos
    11·1 answer
  • Round to the nearest tenth 5.63
    13·2 answers
  • Factor completely<br>X4 + 8x2 + 16<br><br>A) (x2+4)<br>B) (x + 4)2<br>C)(x2 + 4)2<br> D)(x² + 16)2​
    6·2 answers
  • I need help! and ill give brainliest
    11·1 answer
  • Solve each equation by completing the square : <br> NEED THIS IN 10 MINS WILL GUVE BRAINLIEST
    14·1 answer
  • Miya plans to visit her sister over the summer. On a map, her house is 2 inches from her sister’s house. If the map uses a scale
    6·1 answer
  • Ava buys a book for $8.58. She pays with a $10 bill. How much change will she get.
    8·2 answers
  • What is .072 divided by 345.00
    14·1 answer
  • I need help with this math question
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!