Solve the following system of equations: {2x−y=3 7x−2y=3

Answers

Answer 1
Answer:

Step-by-step explanation:

hope its helpful.........

Answer 2
Answer:

Answer:

Step-by-step explanation:

2x−y=3..........(1)

7x−2y=3........(2)

Making y as subject in equation (1)

y = 2x - 3

Substituting y into (2)

7x - 2(2x - 3) = 3

Opening bracket

7x - 4x - 6 = 3

3x = 3 + 6

3x = 9

x = 9/3

x = 3

And y = 2x - 3

y = 2(3) - 3

y = 6 - 3

y = 3


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True or false: any nonzero integers, the product and the quotient have the same sign. Why?

5x+7y=775x+3y=53



2x+5y=-1
X+2y=0


3x+6y=6
2x-3y=4

Answers

1.)
5x+7y=77\n 5x+3y=53\n (5x+7y)-(5x+3y)=77-53\n 5x-5x+7y-3y=24\n 4y=24\n y=6\n 5x+7\cdot 6=77\n 5x+42=77\n 5x=77-42\n 5x=35\n x=\frac { 35 }{ 5 } \n x=7

2.)
2x+5y=-1\n x+2y=0\n \n 2\cdot (x+2y)=2\cdot 0\n 2x+4y=0\n (2x+5y)-(2x+4y)=-1-0\n 2x-2x+5y-4y=-1\n y=-1\n 2x+5\cdot -1=-1\n 2x-5=-1\n 2x=-1+5\n 2x=4\n x=\frac { 4 }{ 2 } \n x=2

3.)3x+6y=6\n 2x-3y=4\n 2\cdot (2x-3y)=2\cdot 4\n 4x-6y=8\n \n (3x+6y)+(4x-6y)=6+8\n 4x+3x+6y-6y=14\n 7x=14\n x=\frac { 14 }{ 7 } \n x=2\n \n 3\cdot 2+6y=6\n 6+6y=6\n 6y=0\n y=0\n

Simplify -6x - 5 = 0x + -5

Answers

                                             −6x−5=0x−5

                                   −6x−5=(0+−5)

                          −6x−5=−5

           Add 5 to both sides.

   −6x−5+5=−5+5

−6x=0
/-6    /-6


x=0~~~

P.S: There's no such thing as -0.

Parallel line to 2x+3y=6 passing through (6,-3)

Answers

Answer:

y = (-2/3)x + 1

Step-by-step explanation:

3y = -2x + 6

y = (-2/3)x + 2

y + 3 = (-2/3)(x - 6)

y + 3 = (-2/3)x + 4

y = (-2/3)x + 1

Because a square is a parallelogram, it must have

Answers

2 pairs of paralell sides

Answer:2 square sides

Step-by-step explanation:

Which answer would make △WTV~△RSP by the AA similarity postulate?Select one:

m∠W=m∠V and m∠R=m∠P

m∠T=m∠S and m∠V=m∠P

WTRS=SPTV=WVRP

WTRS=TVSP=WVRP

Answers

sigh smhhhh BRUH I SWEAR- anyways

Answer:

The third one hope this helpsssssssssssssssssssss

Step-by-step explanation:

Order of operations- usually, one egg is released each month during a female's reproductive years. If menstruation begins at 12 years of age and ends at 50 years of age, calculate the number of eggs her body can release during her reproductive years.

Answers

You have to subtract 12 from 50 to get 38 and multiply it by 12 (number of months) to get 456 eggs

Answer:

Step-by-step explanation:

Most people will have the strong desire to conceive a child at some point during their lifetime. Understanding what defines normal fertility is crucial to helping a person, or couple, know when it is time to seek help. Most couples (approximately 85%) will achieve pregnancy within one year of trying, with the greatest likelihood of conception occurring during the earlier months. Only an additional 7% of couples will conceive in the second year. As a result, infertility has come to be defined as the inability to conceive within 12 months. This diagnosis is therefore shared by 15% of couples attempting to conceive. We generally recommend seeking the help of a reproductive endocrinologist if conception has not occurred within 12 months. However, there are various scenarios where one may be advised to seek help earlier. These include: