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
maks197457 [2]
2 years ago
15

X=16-4y. systems of equations 3x+4y=8 substitution

Mathematics
1 answer:
alina1380 [7]2 years ago
6 0

Answer:

x=-4  y=5

Step-by-step explanation:

Rewrite equations:

x=−4y+16;3x+4y=8

Step: Solvex=−4y+16for x:

x=−4y+16

Step: Substitute−4y+16forxin3x+4y=8:

3x+4y=8

3(−4y+16)+4y=8

−8y+48=8(Simplify both sides of the equation)

−8y+48+−48=8+−48(Add -48 to both sides)

−8y=−40

−8y

−8

=

−40

−8

(Divide both sides by -8)

y=5

Step: Substitute5foryinx=−4y+16:

x=−4y+16

x=(−4)(5)+16

x=−4(Simplify both sides of the equation)

Answer:

x=−4 and y=5

You might be interested in
If the maker of the promissory note fails to pay the note on the due date,the note is said to be
Svetlanka [38]

Answer:

When the maker of a promissory note fails to pay, the note is said to be <u>dishonored.</u>

Step-by-step explanation:

5 0
2 years ago
Brian has basketball cards and 5 baseball cards what fraction of brians card are baseball cards
stich3 [128]
How many basketball cards
8 0
3 years ago
A $500 couch is marked up 20%. What is the new price of the couch?
Aleks04 [339]
Pretty sure the answer is $600

Hope this helps
6 0
3 years ago
Question 6 (multiple choice)
vladimir1956 [14]
16 Chairs!

I just answered this question yesterday so I know that its 16.
6 0
2 years ago
Read 2 more answers
Plz help out I’ll give brainliest :)
saveliy_v [14]

Answer:6,10 I think

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Suppose that circles R and S have a central angle measuring 125°. Additionally, circle R has a radius of 2 3 feet and the radius
    6·2 answers
  • Find the sum of the arithmetic series: 10 + 4 + (-2) + ... + (-50)
    11·1 answer
  • For questions 1-5, round the fraction or mixed number to the nearest 1/2
    12·1 answer
  • Consider the rational numbers 4/13 and 3/10.
    5·1 answer
  • Please fo your best cause I need this answer asap​
    10·1 answer
  • Solve the equation.<br><br> 3(x−9)=30
    7·2 answers
  • Some help will be nice, and I have some more questions to come!
    13·2 answers
  • Solve for a.<br> ab +c=d<br> a=b/(c-d)<br> a = (d - C)/b<br> a=b+c/d
    11·2 answers
  • Is the answer option c?
    11·1 answer
  • CAN SOMEONE HELP ME PLEASE?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!