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
AysviL [449]
3 years ago
7

X=y x+2y =3 Solve using substitution

Mathematics
1 answer:
Zielflug [23.3K]3 years ago
3 0

Answer:

Therefore the Final Solution is

x = 1 and y = 1

Step-by-step explanation:

Given:

x=y                ...............Equation ( 1 )

x+2y=3         ................Equation ( 2 )

To Find:

x = ?

y = ?

Solution:

Equating Equation  ( 1 ) in Equation ( 2 ) we get

y+2y=3\\\\3y=3\\\\y=\frac{3}{3} \\\\\therefore y =1

Now Substituting y = 1 in Equation ( 1 ) we get

x =1\\\\\therefore x=1

Therefore the Final Solution is

x = 1 and y = 1

You might be interested in
Solve 3x+2y=4 4x+3y=7 algebraically
Leona [35]
Step 1. Multiply first equation with -3 and the second one with 2. You'll get:
\left \{ {{-9x-6y=-12} \atop {8x+6y=14}} \right.

Step 2. Add both equations together. You'll get:
-x=2, which gives x = -2

Step 3. Replace x = -2 in the first equation and calculate y.
3(-2)+2y=4\\
y=\frac{4+6}{2}=5

The solution is: x=-2, y=5
8 0
3 years ago
Dina planted a six-foot tree in her backyard which she expects to grow at the rate of 4 feet per year. Find the equation of the
Scrat [10]

Answer:

y = 6 + 4x

After 4 years, the tree would be 22 ft tall.

Step-by-step explanation:

Hi there!

Let x = the number of years that pass

Let y = the height of the tree (ft)

We're given that the 6-foot tree grows at a rate of 4 ft per year. This means that the height of the tree will be equal to 6 ft, the original height, plus another 4 ft every year that passes.

Height of tree = 6 feet + 4 feet × number of years that pass

y = 6 + 4x

To solve for how tall the tree would be 4 years after Dina plants it, replace x with 4, since 4 years have passed:

y = 6 + 4(4)

y = 6 + 16

y = 22

Therefore, the tree would be 22 ft tall.

I hope this helps!

8 0
3 years ago
What wrong with this 21.8x0.4=87.2
Brrunno [24]
I think the wrong is the answer , I hope that help , good luck
4 0
3 years ago
Read 2 more answers
Jake bought the pizza shown above for lunch, which was cut into four equal slices. What percentage of the pizza did Jake eat if
NNADVOKAT [17]
The answer is D- 75%
6 0
3 years ago
Read 2 more answers
1.The base length of a rectangle is multiplied by 8. How does this affect the area?
earnstyle [38]

Answer:

2x bigger

Step-by-step explanation:

because if you split the rectange in half, it would be 2x?

3 0
3 years ago
Read 2 more answers
Other questions:
  • NASCAR driver Jimmy Johnson completed 200 laps as he crossed the finish line. From the start of the race to the finish line, is
    11·2 answers
  • What is the slope of the line?
    10·1 answer
  • What is the Volume?
    11·1 answer
  • HELP! 20 POINTS FOR WALK THROUGH AND ANSWER!!!
    9·2 answers
  • A migrating bird flies 420 miles in 14 hours how many miles does it fly in 5 hours
    10·2 answers
  • Pls help ahh I suck at ka ty
    8·1 answer
  • 1/2(2a-6b+8) create an equivalent expression
    6·1 answer
  • 23792743598437589643252963405 x 23792743598437589643252963405
    13·1 answer
  • £54 is 10% off what is the the original price
    6·1 answer
  • Solve each of these equations. Explain or show your reasoning.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!