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
Furkat [3]
2 years ago
15

-X + 2y= -3 and -8x — 3y= -5

Mathematics
2 answers:
Evgen [1.6K]2 years ago
7 0

Answer:

x = 1, y = -1

or as an ordered pair, (1, -1).

Step-by-step explanation:

  -x  + 2y = -3

-8x — 3y = -5

Multiply first equation by -8:

8x - 16y = 24

Add this equation to the second equation:

-19y = 19

y = -1.

Plug y = -1 into the second equation:

-8x - 3(-1) = -5

-8x + 3 = -5

-8x = -8

x = 1.

Goshia [24]2 years ago
4 0

Answer:

x=1, y=-1. (1, -1).

Step-by-step explanation:

-x+2y=-3

-8x-3y=-5

----------------

-8(-x+2y)=-8(-3)

-8x-3y=-5

------------------------

8x-16y=24

-8x-3y=-5

-----------------

-19y=19

y=19/-19

y=-1

-x+2(-1)=-3

-x-2=-3

-x=-3+2

-x=-1

x=1

(1, -1)

You might be interested in
How many centimeters are there in 1.23 x 10 to the negative 6th power
pashok25 [27]
I think the answer is <span>0.123 cm</span>
4 0
3 years ago
X2 + 3x + 2<br> What is the factor?
musickatia [10]
Answer: (x+1)(x+2)
step by step explanation:
3 0
3 years ago
Please help me<br> Solve for x.<br> a) 30<br> b) 27<br> c) 33
OlgaM077 [116]

Answer:

x = 27

Step-by-step explanation:

The angle at any point on a straight line is 180 degrees.

The middle line over there is creating a right angle which is 90 degrees.

This must mean that both sides are 90 degrees.

3x+9 = 90

3x = 81

x = 27

4 0
3 years ago
Solve using the elimination method:<br> X-3y=7<br> 3x + 3y=9
sergij07 [2.7K]

Answer:

                        x=4\\\\y=-1

Step-by-step explanation:

Given Equation:

x-3y=7      Equation:1

3x + 3y=9     Equation:2

Dividing Equation:2 by '3' both the sides:

x+y=3      

or   x=3-y     Equation:3

Putting the vale of 'x' in Equation:1

                             x-3y=7

                          (3-y)-3y=7\\\\3-y-3y=7\\\\3-4y=7\\\\

Subtracting '3' both sides

                             -4y=7-3\\\\-4y=4

                                 y=\frac{4}{-4}

                                 y=-1

Putting value of 'y' in Equation:3

                                x=3-y

                                x=3-(-1)\\\\x=3+1\\\\x=4

The solution of the equations is :

                              x=4\\\\y=-1

7 0
3 years ago
What is the solution for x in the equation?
rjkz [21]

Answer:
10

Step-by-step explanation:

-3x+7x-8=34+9x-2

(Combine like terms)

4x-8=32

(Add 8 to each side)

4x=40

(Divide by 4)

X=10

5 0
1 year ago
Other questions:
  • Multiply (-3/4)(7/8)
    13·2 answers
  • Which expression is equivalent to -32 to 3/5 power
    8·1 answer
  • Consider the two triangles shown. Which statement is true?
    15·2 answers
  • 0.625 into a fraction
    9·2 answers
  • Karen earned $33 in 4 hours at her job today. She wants to know how much she could earn tomorrow if she works 10 hours at the sa
    11·2 answers
  • State the missing reasons in this proof.<br><br><br> a. <br> b. <br> c.
    15·1 answer
  • The following box plot shows points awarded to dance teams that competed at a recent competition:
    14·1 answer
  • Please help I need to get this done
    10·1 answer
  • You are given a number. Do you know the number that is 1/5 as big?<br><br> Need answer ASAP ❤️❤️❤️
    14·1 answer
  • In 6 and 7, Find the missing indicated value.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!