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
deff fn [24]
4 years ago
6

Substitute each equation by multiplication. 6x-2y=-6 -2x-3y=2

Mathematics
1 answer:
Georgia [21]4 years ago
7 0

Answer:

x = -1

y = 0

Step-by-step explanation:

to solve the equation by substitution in order to  evaluate for x and y

let

6x-2y=-6  ................................................ equation 1

-2x-3y=2 .................................................. equation2

from equation 2

-2x-3y=2 .................................................. equation2

-2x -2 = 3y

divide both sides by 3

(-2x -2)/3 = y

y = (-2x -2)/3 ................................... equation3

substitute y = (-2x -2)/3 into equation 1

6x-2y=-6  ................................................ equation 1

6x - 2[  (-2x -2)/3]  = -6

6x  + (4x + 4)/ 3 = -6

multiply through by 3

18x + 4x + 4 = -18

22x = -18-4

22x = -22

divide both sides by the coefficient of x which is 22

22x/22 = -22/22

x = -1

substitute for x in equation 3

y = (-2x -2)/3 ................................... equation3

y = -2(-1) - 2/3

y = 2 -2/3

y = 0/3

y = 0

therefore the value of x and y is -1 and 0 respectively

You might be interested in
Need help with this algebra problem ALG 2A
nikdorinn [45]

Answer:

If you are trying to simplify the expression, the answer is -14x^2+8x-37

Step-by-step explanation:

First, keep removing the parentheses.

(x-1)(2-x)+(x^2+5)(x-7) -x^2(x+6)

Next, try expanding the expression.

3x - x^2 - 2+ (x^2+5)(x-7)-x^2(x+6

3x-x^2-2+x^3-7x^2+5x-35-x^2(x+6

3x-x^2-2x^3-7x^2+5x-35-x^3-6x^2

Finally, simplify the expression.

-14x^2 8x-37

I hope this helped to answer your question.

5 0
3 years ago
I need help, Please help me.
RUDIKE [14]

Answer:

Yes, SSS

Step-by-step explanation:

Well they are congruent since well the triangles are from a square which means that the sides will all be equal so therefore it is the SSS rule which stands for "side, side, side" meaning all of the sides are equal.

8 0
3 years ago
Help me plz ASAP! This is Geometry. Please show work if there is any. Will give brainliest to whoecer answers these​
Naddik [55]

Answer:

Step-by-step explanation:

23.m∠2=x+60

as the sides are equal.

so angles are also equal.

m∠2=45

x+60=45

x=45-60=-15°

so C

24.

74+74+m∠2=180

m∠2=180-148=32°

so 3x-4=32

3x=32+4=36

x=12°

C

25.

as the three sides are equal so angle are equal.

m∠2=60

7x-10=60

7x=60+10=70

x=10

D

4 0
3 years ago
When evaluating the expression 3 x (3 + 12/3) - 4, Ryan began with 3 + 12. What was Ryan's mistake?
KIM [24]

Answer:

He has to divide 12/3 first

Step-by-step explanation:

it’s like pemdas you have to do that first then you go on to added the 3+ whatever 12/3 is

3 0
3 years ago
Read 2 more answers
What do you call a female bug that floats math worksheet answer key?
Elena L [17]

Answer to this problem will depend upon the set of questions given with the worksheet or page having question "What do you call a female bug that floats math worksheet answer key?".

You haven't provided the set of questions but i can explain about how to get the answer of the name of bug in that sheet.


Look at the sample picture of similar problem that is attached with the answer. You have to solve the given set of problem and fill the correct matching answer in the blank box.

Say answer of first problem is choice named "T" then fill the letter "T" in the blank box numberd "1".

Same way solve other problem and fill correct name of the letter in each blank boxes.

Now rearrange letters in your answer box in increasing order of numbers 1 to 15. The resulting name will be the final answer for the name of the bug.

6 0
3 years ago
Other questions:
  • The sum of 8 times a number and 5 is equal to 3
    15·2 answers
  • 53kg, 42kg, 41kg, 60kg, 44kg, 49kg. Calculate the mean weight giving your answer correct to two decimal places
    8·1 answer
  • Use the properties of exponents to rewrite the expression.<br> (-5uv)(-5uv)(-5uv)(-5uv)
    15·1 answer
  • Ralph is an electrictian.he charges an initial fee of $32 plus $33 per hour. If Ralph earned $189 on a Job,how long did The Job
    14·1 answer
  • Please help ASAP!!!!!
    14·1 answer
  • Solve 6b - 1 = 2/3b + 11 for b.
    5·1 answer
  • suppose a city with a population of 400,000 had been growing at a rate of 4% per year. if this rate continues,fine the populatio
    9·2 answers
  • Triangle CDA is the image of triangle ABC after a 180 rotation around the midpoint of segment AC. Triangle ECB is the image of t
    8·1 answer
  • 6. Find the value of x. The diagram is not to scale.<br> S<br><br> (5x-30)°<br> (5x)^<br> T U<br> R
    12·2 answers
  • For a research paper, a student spent 6/7 hours searching the internet on website A and 1/5 hours on website B. How much longer
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!