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
barxatty [35]
3 years ago
10

If x-2y=0 and 3x + y =7 what is the value of x

Mathematics
1 answer:
Agata [3.3K]3 years ago
6 0

Answer:

x=2

Step-by-step explanation:

If 3x + y = 7, then y= 7 - 3x.

Substitute in x - 2y = 0

So:

x - 2(7-3x)=0

x-14+6x=0

7x=14

x=2

You might be interested in
9 yd<br> 12 yd<br> What is the length of the hypotenuse?
alexandr402 [8]
A^2 + b^2 = c^2
9^2 + 12^2= c^2
81 + 144 = 225
C= 15
The answer is 15 yards.
7 0
3 years ago
Read 2 more answers
Kendra is buying a Nintendo Switch with a price tag of $300. The sales tax rate where Kendra is purchasing the
castortr0y [4]

Answer: So for the 9.5% percent I'm not sure if you mean by 9.5% off the price or more for the price so Ill just do both

If you subtract $300 from 9.5% you get 271.5 US$

But if you add $300 to 9.5% you get 328.5 US$

3 0
3 years ago
A town's employment statistics show that 855 of its residents were unemployed last month. This is a decrease of 25% from the pre
Leona [35]
Decrease of 25% means only 855 people? Okay, so you want to backtrack. If you divide by 25% you’re going to get what it was for a 75% decrease. So divide by .75 instead. 855/.75 = 1140 unemployed residents last month
6 0
1 year ago
Simplify 4(b-6)+19 ?
Digiron [165]

Answer:

4b -5

Step-by-step explanation:

Perform the indicated multiplication first:  4b - 24 + 19.  Next, combine like terms, obtaining 4b -5 (answer)

4 0
3 years ago
Logan can make $50 per pool to clean pools during the summer to earn money. He did, however, need to
babunello [35]

Answer:

Step-by-step explanation:

y = 50x - 165

7 0
2 years ago
Other questions:
  • Which of the statements about the x-axis are true?
    14·1 answer
  • What is the surface area for the given figure?
    9·1 answer
  • Consider the linear function that is represented by the equation y = 2 x + 2 and the linear function that is represented by the
    5·1 answer
  • What will be the value of
    10·1 answer
  • The distance from a point to two is five units. The point could be located at _____.
    9·2 answers
  • Triangle TRI has a base of m centimeters and a height of n centimeters. Rectangle RECT has a length of n centimeters and a width
    10·1 answer
  • Ari's teacher says he may have his report grade based on either the mean or the median of his last six test scores
    7·1 answer
  • Someone help
    12·1 answer
  • Lucy's spaceship is low on fuel. Lucy is 1{,}2001,2001, comma, 200 light years (\text{l.Y.}l.Y.Start text, l, point, y, point, e
    15·2 answers
  • May someone help me with this math problem?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!