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
Lelechka [254]
3 years ago
14

Solve the system by substitution. y = 3x y = -4x – 49

Mathematics
1 answer:
Alex787 [66]3 years ago
6 0

Answer:

Step-by-step explanation:

Substitute 3x into y=-4x-49

y=−4x−49

3x=−4x−49

3x+4x=−4x−49+4x(Add 4x to both sides)

7x/7=−49/7

(Divide both sides by 7)

x=−7

Step: Substitute−7forxiny=3x:

y=3x

y=(3)(−7)

y=−21(Simplify both sides of the equation)

Answer:

x=−7 and y=−21

You might be interested in
Five less than one fourth of my age is 12
Ber [7]
5 less than (-5) of 1/4 of my age (age/4) is 12 (=12)

-5+a/4=12
add 5 to both sides
a/4=17
times 4 both isdes
a=68

your age is 68
6 0
3 years ago
Read 2 more answers
If x=3(y+w)-1 what id the value of w in terms of x and y ?
Sati [7]

Answer:

x=3(y+w)-1

x=3y+3w-1

x+1-3y=3w

w = (x+1-3y) / 3

7 0
3 years ago
The equation V = -2000t + 20,000 describes the value in dollars of a certain model of car after it is t years old. If a car is w
Masteriza [31]
Hi there

14000=-2000t+20000
Solve for t to find the age of the car
2000t=20000-14000
2000t=6000
T=6000/2000
T=3 years

Hope it helps
5 0
4 years ago
Read 2 more answers
Find the slope of the following equation .simplify your answer 5x+2y=-10
defon

Answer:

m=-5/2

Step-by-step explanation:

Use the slope-intercept form y=mx+b to find the slope m.

6 0
3 years ago
Read 2 more answers
Plz help!! asap!!
Marat540 [252]
Multiply 64 times .30 =?
Then take the answer you get and subtract it from $64 then you should get your answer of $44.80 please work it out it’s not too hard it is actually pretty easy.
Hope this helps
5 0
3 years ago
Read 2 more answers
Other questions:
  • Top Hat Soda has 300,000 milliliters of cola to bottle. Each bottle holds 500 milliliters. How many bottles will the cola fill?
    14·1 answer
  • You put 60% of your paycheck into your savings account. Your paycheck is $235. How much money do you put in your savings account
    6·2 answers
  • Nine new employees, two of whom are married to each other, are to be assigned nine desks that are lined up in a row. If the assi
    9·1 answer
  • PLEASE HELP , should be pretty easy though
    8·2 answers
  • If 2 kilograms of strawberries cost $4.50, how much would 3 kilograms cost?
    10·1 answer
  • Geometry Help Please!!
    9·2 answers
  • Least to greatest 1.098,1.76,1.064, 2.001
    6·2 answers
  • A family rents a truck to move from Buffalo to Chicago. The rental has a base cost of $29.95, plus an additional cost of $1.50 p
    13·1 answer
  • Which equation gives the line shown on the graph?
    14·1 answer
  • Danny’s supermarket has 1 litter water bottles normally priced at $1.50 reduced 25%
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!