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
adelina 88 [10]
2 years ago
8

If x+y = -10 and x-y = 2 what is the value of x

Mathematics
1 answer:
-BARSIC- [3]2 years ago
7 0

Answer:

  x = -4

Step-by-step explanation:

The solution to a "sum and difference" system of equations can be found by adding the equations together.

  (x +y) +(x -y) = (-10) +(2)

  2x = -8 . . . . . . simplify

  x = -4 . . . . . . . divide by 2

_____

Additional comment

 y = -6, though this question did not ask that value.

You might be interested in
-2x + 7<br> Coefficient(s) :<br> Variables(s):<br> Constant:
Serggg [28]

Answer:

Variable = x

Coefficient = 2

Constant = 7

A variable is an unknown that holds an unknown value.

A coefficient is a number that multiplies something.

A constant is a fixed number.

Hope This Helps :)

4 0
3 years ago
The distance between Dania and Hollywood is shown on the map. What is the actual distance between Dania and Hollywood?
pishuonlain [190]

Answer:

15 miles

Step-by-step explanation:

If there are 2.5 inches and 1 inch is 6 miles, then just multiply 6 by 2.5 to get 15

6*2.5=15

8 0
3 years ago
3(d-8) - 5 = 9(d+2) + 1
attashe74 [19]

Answer:

d = - 8

Step-by-step explanation:

3(d-8) - 5 = 9(d+2) + 1

3d-24 - 5 = 9d+18 + 1

3d - 29 = 9d + 19

9d - 3d = -29 - 19

6d = - 48

6d / 6 = -48/6

d = -8

7 0
3 years ago
Read 2 more answers
In triangle EFG , EF=FG . EF= 6X-10 , EG =2X+14, and FG =3X+11. find EF .
jarptica [38.1K]
Since EF=FG, you can set 6x - 10 = to 3x +  11

6x -10 = 3x +11

Then add like terms

6x - 3x = 11+10

so, 3x = 21

Now you can divide by 3 to get x = 7 :)

then put it back into 6x - 10

6(7) - 10 = EF

so, EF = 32
4 0
3 years ago
Hii please help asap ill give brainliest thanks
Tanzania [10]

Answer:

A literary work credited with advancing ancient Indian civilization because it set rules for the organization of Buddhist monasteries.

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • Which assumption will work best for a large data set with a normal distribution?
    7·2 answers
  • What is the approximate length of the midsegment parallel to BC.
    7·2 answers
  • Dissasamble trinom!<br> Number 3
    11·1 answer
  • 2/3 -4x + 7/2 = -9x+ 5/6 combine terms Subtract add multiply divide step by step solve the equation
    10·1 answer
  • Rewrite as an addition problem:<br> (5w +6u) - (4w - 3u)
    12·1 answer
  • Each square in the grid is a unit square with an area of 1 square unit.
    14·1 answer
  • A researcher initially plans to take an SRS of size 160 from a certain population and calculate the sample mean. Later, the rese
    10·1 answer
  • Solve for x, round to the nearest hundredths place.
    10·1 answer
  • Erica's Burgers cooks its burgers either well done or medium. Last night the restaurant served 60 burgers in all, 45 of which we
    13·1 answer
  • Which property justifies this statement?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!