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
goldenfox [79]
3 years ago
10

If two equations are 3x + 2y = 14; 5x + 3y = 12, then the value of 5x – y is

Mathematics
1 answer:
musickatia [10]3 years ago
6 0

Answer:

-124

Step-by-step explanation:

3x + 2y = 14 (×3) → 9x + 6y = 42

- → x = -18

5x + 3y = 12 (×2) → 10x + 6y = 24

3(-18) + 2y = 14

-54 + 2y = 14 → 2y = 14 + 54 = 68 → y = 68/2 = 34

5x - y = 5(-18) - 34 = -90 - 34 = -124

You might be interested in
PLEASE HELP <br>Answer: m = 3 <br>3 - y = x + 10​<br>Find the slope and y intercept
Kitty [74]

Answer:

slope is -1 and y intercept is -7.

Step-by-step explanation:

3- y = x+10

or, -y = x +10-3

or, -y = x+ 7

or, y = -x-7

comparing with y= mx +c, m= -1, c= -7

6 0
3 years ago
6+y= -3<br> what’s the answer
erma4kov [3.2K]

Answer:

y=-9

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
A sphere is inscribed is a cube. Explain the relationship of the two solid figures
Zielflug [23.3K]
Hold on let me try to help let me figure it out for you
4 0
3 years ago
Find the inverse of: f(x)=3x-8
Crazy boy [7]
The answer is f^-1(x)=8/3+x/3
8 0
4 years ago
B The value of 3 in 38.65 is 3 tens.true or false
-BARSIC- [3]

yes that is true

hope that helped

4 0
3 years ago
Read 2 more answers
Other questions:
  • What does it mean when a polynomial equation is in standard​ form?
    10·2 answers
  • Help me please, please please
    11·1 answer
  • Translate the image by (x+4, y - 6)
    8·1 answer
  • Last year's litter consisted of 12 kittens, and this year's litter is 3/4 as large. If 2/3 of this new litter's cats are brown,
    10·1 answer
  • 5. A Morrison’s fuel truck driver drove for 5 hours straight. if he travelled a distance of 375 miles, what was his average spee
    14·1 answer
  • Can someone please help ?
    11·1 answer
  • Could someone answer both ? Maybe add the work also .
    9·2 answers
  • Pls answer show your work
    10·1 answer
  • Plss answer fast it is so important ​
    10·1 answer
  • Using pi as 3.14. what is the circumference of a circle with a radius of 3mm.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!