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
Rom4ik [11]
3 years ago
13

Solve each system by substitution 2x - 3y = -1 X + 4y = -6

Mathematics
1 answer:
lord [1]3 years ago
3 0

Answer:

(- 2, - 1 )

Step-by-step explanation:

Given the 2 equations

2x - 3y = - 1 → (1)

x + 4y = - 6 → (2)

Rearrange (2) expressing x in terms of y by subtracting 4y from both sides

x = - 6 - 4y → (3)

Substitute x = - 6 - 4y into (1)

2(- 6 - 4y) - 3y = - 1 ← distribute and simplify left side

- 12 - 8y - 3y = - 1

- 12 - 11y = - 1 ( add 12 to both sides )

- 11y = 11 ( divide both sides by - 11 )

y = - 1

Substitute y = - 1 into (3) for corresponding value of x

x = - 6 - 4(- 1) = - 6 + 4 = - 2

Solution is (- 2, - 1 )

You might be interested in
Any one good at factoring?
svetlana [45]
The student went wrong in step three.  the solutions should have been -3 and 5
8 0
3 years ago
PLEASE HELP 4. The Buff City Soaps in Arlington is counting how many soaps and bath bombs they sell in a given day. In total, th
Vedmedyk [2.9K]

Answer:

33 = x + (3x + 1)

x = bath bombs

So 3x is three times as many bath bombs, then the plus one makes it so that the soaps sold is more than three times the amount of bath bombs sold

8 0
2 years ago
‼️helpp ASAP pleasee
koban [17]
We know the measure of one of the angles.Angle b which is 90.

Now we have to find the other two angles.

First we will find angle a.
There are 180 degrees in a straight line.
Sooo...
180-130=50
Angle a will be 50.

There are also 180 degrees in a triangle.
To find the last angle we do this
180-50-71=59

Your answer and the measure of angle c will be 59 or option 3. 

7 0
3 years ago
Helpppppppppppppppppp​
scoray [572]

Answer:

f

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
(x+y)(x+6y) pls help me solve question pls and pls also give explanation if possible
steposvetlana [31]

Step-by-step explanation:

= (x + y)(x + 6y)

= x \times x + x \times 6y + y \times x + y \times 6y

=  {x}^{2}  + 6xy + xy + 6 {y}^{2}

=  {x}^{2}  + 7xy + 6 {y}^{2}

7 0
2 years ago
Other questions:
  • Which multiplication equation is false? There is only 1 answer.
    5·1 answer
  • Simplify: 6v+v+1 learned at beggining of year btw
    13·1 answer
  • How to do 3 4/5 ÷ 1 1/3
    5·1 answer
  • Let’s assume that human body temperatures are normally distributed with a mean of 98.20° F and a standard deviation of 0.62° F.
    9·1 answer
  • The center of a circle is at (2, −5) and its radius is 12.
    10·2 answers
  • Kelsey's preschool tuition is $180 per week. She receives a small discount for the honor roll, $50 per month. Her grandparents h
    7·2 answers
  • Need help again lol ...
    9·1 answer
  • There are 874 pieces of candy in the piñata. There are 23 children at the party, and they all agreed to split the candy equally.
    5·1 answer
  • Pls somone help me I need the answer pls
    15·2 answers
  • If pi is 3.142 what is the area of a circle of radius 3.5 cm
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!