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
xeze [42]
3 years ago
15

Solve the system by the elimination method. Check your work. x - 3y = 0 3y - 6 = 2x

Mathematics
2 answers:
Leto [7]3 years ago
6 0
X - 3y=0
3y - 6 =2x
__________
x - 3y=0 ........(1)
-2x + 3y=6 ........(2)
__________
-x = 6 ==》x = -6 .........(3) subst. in (2)

-2 (-6) + 3y = 6 ==》3y= -6 ==》y = -2

Romashka [77]3 years ago
3 0

Answer:(-6,-2)

Explanation:
The elimination method calls for two variables that cancel each other out. 
In this circumstance, you already have 3y and -3y.

First, make the orders of the equations the same. I got the x's to the same side on each equation.
This left me with:
x=3y        2x=3y-6.
Now, subtract the first equation from the second one to get x=-6.
That's the first part of the solution. For the y, you can just plug x into one of the equations and solve. I'll use the first one. 
-6-3y=0.    
Now get the ys to one side: -6=3y. Divide both sides by 3 to get y= -2.
Now that you have an x and a y coordinate, your solution is (-6,-2).

To check: plug both values in for their variables into each equation.
3(-2)-6=2(-6)   solve to get... -12=-12, which is true, meaning the solution works for that equation.

-6-3(-2)=0   solve to get... 0=0. The solution works for both equations.
You might be interested in
what's the final volume of a gas with an initial volume of 75ml if the pressure decreases from 300ml to 200ml? A. 50.0ml B.112.5
aivan3 [116]
300 ml ... 200 ml
75 ml ... x = ?

If you would like to know what is the final volume of a gas, you can calculate this using the following steps:

300 * x = 200 * 75     /300
x = 200 * 75 / 300
x = 50.0 ml

The correct result would be A. 50.0 ml.
8 0
3 years ago
Read 2 more answers
Can somebody help me please?
Gnesinka [82]

Answer:

$22.50

Step-by-step explanation:

C= 0.20X+14.50

C=0.20(40)+14.50

C=8+14.50

C=22.50

5 0
3 years ago
Read 2 more answers
Q7. What would be the best next step in solving the following equation for x?<br><br> 8x - 4 = 10
bagirrra123 [75]

Answer:

The next step would be adding -4 to the other side since it would cancel out -4

Step-by-step explanation:

8 0
3 years ago
Name a pair of Alternate Exterior Angles
pogonyaev

Answer:

M, Z

O, X

P, W

N, Y

Step-by-step explanation:

They are all Alternate Exterior Angles.

<em>Hope this helps! Please let me know if you need more help or think my answer is incorrect. Brainliest would be MUCH appreciated. Have a great day!</em>

4 0
2 years ago
Read 2 more answers
Easy points. see image below
tatuchka [14]

Answer:

 6

Given expression:

  • \sf -(-(-3)) + 2 + |-7|

Simplify following inside parenthesis

  • \sf -3 + 2 + |-7|

If following is |-a| then |-a| = a

  • \sf -3 + 2 + 7

Evaluate following

  • \sf 6
4 0
1 year ago
Other questions:
  • Solve the equation 2+3/4(2a-2)=8
    15·2 answers
  • Solve. −1.2z − 8.2 &gt; −9.7
    15·1 answer
  • 15 units right of 0 what is the answer
    12·1 answer
  • Bob the builder is making 480 kg concrete mix. Concrete is made by mixing cement, sand and gravel in the ratio 1:3:4 how much sa
    10·2 answers
  • 8x=10y<br>2x-y=5<br>solve x and y
    9·1 answer
  • Which of the following is the graph of (x + 1)2 + (y − 6)2 = 36?
    12·2 answers
  • Write the equation of the line parallel to the line y= 5x + 3 that passes through the point (3,3)
    6·2 answers
  • PLEASE HELP ASAP OR ELSE ILL FAIL
    10·1 answer
  • it is 212.5°C outside when the temperature starts increasing by 2.5°C each hour. How long will it take for the temperature to re
    5·1 answer
  • Which equation justifies why seven to the one third power equals the cube root of seven?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!