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
alukav5142 [94]
3 years ago
15

Solve the following system of equations. 2x + y = 3 x = 2y - 1 Make sure there are NO SPACES in your answer. Include a comma in

your answer. ANSWER: {( a0 )}
Mathematics
2 answers:
Illusion [34]3 years ago
8 0

Answer: your solution would be (1,1)

Step-by-step explanation:

mrs_skeptik [129]3 years ago
5 0

Answer:  x=1;y=1 or (1,1)

Step-by-step explanation:

You can apply the Method of substitution.

Knowing that  x = 2y - 1 (second equation), you can substitute it into the first equation and solve for the variable y:

2x+y=3\\2(2y - 1)+y=3\\4y-2+y=3\\5y=3+2\\5y=5\\y=1

Now you need to substitute y=1 into the second equation x = 2y - 1 to calculate the value of the variable x. Then:

x = 2(1) - 1\\x=2-1\\x=1

Then, the solution is:

x=1;y=1 or (1,1)

You might be interested in
Solve the system of linear equations in two variables by elimination or substitution.
taurus [48]

Answer:

( \frac{1}{2}, 0 )

Step-by-step explanation:

Given the 2 equations

4x + 3y = 2 → (1)

2x - 3y = 1 → (2)

Adding (1) and (2) term by term will eliminate the y- term, that is

6x = 3 ( divide both sides by 6 )

x = \frac{3}{6} = \frac{1}{2}

Substitute x = \frac{1}{2} into either of the 2 equations and evaluate for y

Substituting into (1)

4(\frac{1}{2} ) + 3y = 2

2 + 3y = 2 ( subtract 2 from both sides )

3y = 0 ⇒ y = 0

Solution is ( \frac{1}{2}, 0 )

8 0
3 years ago
What is 8(-9-5x) simplified
VLD [36.1K]
<span>8(-9-5x) 
</span>=8(-9) - 8(5x)
= -72 - 40x
= - 40x - 72

expand by using distributive property

hope it helps
8 0
3 years ago
Solve 2x^2 + x - 4 = 0 <br> X2 +
damaskus [11]

Answer:

\large \boxed{\sf \ \ x = -\dfrac{\sqrt{33}+1}{4} \ \ or \ \ x = \dfrac{\sqrt{33}-1}{4} \ \ }

Step-by-step explanation:

Hello, please find below my work.

2x^2+x-4=0\\\\\text{*** divide by 2 both sides ***}\\\\x^2+\dfrac{1}{2}x-2=0\\\\\text{*** complete the square ***}\\\\x^2+\dfrac{1}{2}x-2=(x+\dfrac{1}{4})^2-\dfrac{1^2}{4^2}-2=0\\\\\text{*** simplify ***}\\\\(x+\dfrac{1}{4})^2-\dfrac{1+16*2}{16}=(x+\dfrac{1}{4})^2-\dfrac{33}{16}=0

\text{*** add } \dfrac{33}{16} \text{ to both sides ***}\\\\(x+\dfrac{1}{4})^2=\dfrac{33}{16}\\\\\text{**** take the root ***}\\\\x+\dfrac{1}{4}=\pm \dfrac{\sqrt{33}}{4}\\\\\text{*** subtract } \dfrac{1}{4} \text{ from both sides ***}\\\\x = -\dfrac{1}{4} -\dfrac{\sqrt{33}}{4} \ \ or \ \ x = -\dfrac{1}{4} +\dfrac{\sqrt{33}}{4}

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

4 0
3 years ago
Help!! For first and second please
jenyasd209 [6]

Answer:

it goes al the way up to 15 and it stops at 5 and the 8 makes the green house

5 0
2 years ago
I need help with this question plz
Sauron [17]
Peter, to find the perimeter you have to add all sides up.
5 0
3 years ago
Other questions:
  • Classify the model as exponential growth or exponential decay. Identify the growth or decay factor AND the percent of increase o
    15·1 answer
  • The sponsor of a 5k run/walk for charity wishes to create a stamp of its billboard to commemorate the event.If the sponsor uses
    10·2 answers
  • What is the difference? Write the number. 60 - 20=
    7·2 answers
  • There are 30 seventh-grade students and
    11·1 answer
  • Im stuck on this question plz help
    8·2 answers
  • Chad used the table to show the ratios of the different types of sports game cards that he owns. For every 4 defense cards, he o
    6·2 answers
  • Check/correct my work please! Working with polynomials and stuff.
    15·1 answer
  • Which of the following is the surface area of the right cylinder below?
    14·2 answers
  • John paid $50 for renting a cycle for 5 hours. Which graph shows the relationship between the cost of renting a cycle for differ
    11·2 answers
  • a jogger is running around a 3/4 mile track and is 2/3 around the track. How far has the jogger traveled?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!