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
marin [14]
3 years ago
9

7x+2y=5. -x-6y =8 solving linear systems using multiplication and addition show your work

Mathematics
1 answer:
blondinia [14]3 years ago
8 0
3(7x+2y)=15,21x+6y+(-x-6y)=15+8,20x=23,x=23/20,
You might be interested in
What is the value of x? x−15=8 in simplest form.
yanalaym [24]

Answer:

x = 23

Step-by-step explanation:

Isolate x.

x - 15 = 8

x = 15 + 8

x = 23

4 0
3 years ago
Read 2 more answers
A chef is filling one sink with water, while emptying another. The first sink is empty and is being filled at a rate of 4 gallon
vodomira [7]
Jssjndsjksmmrdmdnxnxdj
3 0
3 years ago
What is the equation in standard form of the line which passes through (-2, 6) and has a slope of -1?
jekas [21]

Answer:

x + y = 4

Step-by-step explanation:

To write the equation of the line use the point slope form. Then convert to the standard from. Begin by substituting m = -1 and (-2,6).

y - y_1 = m(x-x_1)\\y - 6 = -1(x --2)\\y - 6 = -1(x+2)\\y - 6 = -x -2\\x + y - 6 = -2\\x + y = 4

4 0
3 years ago
Mei subscribed to a magazine at a rate of $24 for 12 issues. When she placed her order, Mei used a coupon that added 3 free bonu
Delvig [45]

Answer:

It didn't

Step-by-step explanation:

This is because the coupon adds them for free, this means that one week she got 15 instead of 12. This had no effect on the cost of her perscription because it was free.

8 0
3 years ago
Read 2 more answers
How do you solve tan^2(30)??
Firlakuza [10]
Square root of three or 1.7320
5 0
3 years ago
Other questions:
  • The sale price of apples at a local grocery store is $1.35 for the first pound and $1.10 for each additional pound. Which functi
    8·1 answer
  • Mileage tests are conducted for a particular model of automobile. If a 98% confidence interval with a margin of error of 1 mile
    13·1 answer
  • What is 140% of 50 ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
    13·2 answers
  • Would y=3x or y=x+300 be steeper
    8·2 answers
  • PLEASE HELP. what is the area and perimeter, show work please.
    7·2 answers
  • I will give you brainilest pls answer..
    11·2 answers
  • .
    5·2 answers
  • Find the value of X*<br> X=<br> X х<br> 8<br> 12
    14·1 answer
  • Please help me, if you help then thanks!
    15·1 answer
  • A car travels a distance of 540 km in 6 hours what speed did he travel at
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!