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
natulia [17]
3 years ago
7

Solve the system by substitution 3x+y=-16 and y=-x-4

Mathematics
1 answer:
kap26 [50]3 years ago
7 0

Solution,

y = -x-4......(i)

3x + y =- 16.......(ii)

Now,

Substituting the value of y in equation (ii)

or, 3x + (-x-4)= -16

or,3x - x - 4 = -16

or, 2x= -16 +4

or, x = -12/2

: x = -6

Then,

Substituting the value of x in (i) equation;

or,y= -(-6) - 4

or,y= 6 - 4

: y =2

You might be interested in
HELP PLEASE NO LINKS I WILL GIVE BRAINLY. ALL QUESTIONS PLEASE ​
Nostrana [21]
26. A
23. B
27. A

hope this helps
6 0
3 years ago
Read 2 more answers
Work on the screenshot
Marrrta [24]

Answer:

12 gallons

Step-by-step explanation:

If it takes 20 h for 5 gallons to be filled, it takes 4 h for 1 gallon to be filled. This is the ratio. You multiply 4 h by 12 to get 48 h, so you multiply 1 gallon by 12 as well. This is 12 gallons.

4 0
3 years ago
Read 2 more answers
Need help ASAP! Will Give Brainliest!
baherus [9]

Answer:

A) To plot equations in point-slope form, pick one and let x = 0, then solve for y (or -4). That gives you point 1 (0,-4). Then let y = 0 and solve for x (or 2/3). That gives you a second point (2/3,0). Plot the two points and draw the line. Repeat for the second equation (points are (0,-3) and (3/5,0)). Where the lines cross is the solution for both equations.

B) point (1,2) fits both equations.

Step-by-step explanation:

Or solve by brute force...

The solution is where the same X,Y point fits both equations, or Y1 = Y2 and X1 = X2. So the equations in point-slope form (already in point-slope form) equal to each other, solve for X and plug that back into either of the equations to find Y.

6X - 4 = 5X -3

X = 1  so

y = 6X - 4

Y = 6 - 4

Y = 2

6 0
3 years ago
Read 2 more answers
Which graph shows the solution to the equation below? log Subscript 3 Baseline (x + 2) = 1
dalvyx [7]

Answer:

Step-by-step explanation:

soution

3^1=x+2

3=2+x

3-2=x

1=x

x=1

3 0
4 years ago
Read 2 more answers
The equation 9y-6x=36 is written in standard form. What is the first step when writing an equivalent equation which solves for x
defon
The answer is D. Subtract 9y from both sides of the equation. 
7 0
4 years ago
Read 2 more answers
Other questions:
  • 2 + 7 * 12/6 - 3 ^ 2
    5·2 answers
  • Can someone help me on this math question?
    11·1 answer
  • I need 7,714 solar panels to power my new workshop. If each box contains 24 panels, about how many boxes should I purchase?
    9·2 answers
  • If it costs $3 to buy 2 bags of rice, how much will it cost for 1 bag of rice?
    11·2 answers
  • Find the area of the shape shown below
    10·1 answer
  • The maximum weight allowed per car on The Twister carnival ride is 263 pounds. Your friend weighs 86 pounds. To be able to ride
    7·1 answer
  • In a manufacturing process, we are interested in measuring the average length of a certain type of bolt. Past data indicate that
    10·1 answer
  • 20 POINTS SOMEONE PLEASE ANSWER CORRECTLY
    14·2 answers
  • SOMEONE PLEASE HELP !!
    13·1 answer
  • I need help!!!please tell me the answer!!!
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!