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
Karo-lina-s [1.5K]
3 years ago
10

6x + y = -39 3x + 2y = -15 elimination using multiplication

Mathematics
1 answer:
vlabodo [156]3 years ago
5 0
Multiply the second equation by 2 so that its 
6x+4y=-30
then subtract 
6x+y=-39
6x+4y=-30
= -3y=-69
divide by -3 to isolate the y
then you get y=23
substitute the y value back into one of the equations to solve for x.
6x+23=-31
solve like you always do and you'll get your x
Congratulations, you solved a problem.

You might be interested in
How many possible outcomes exist?
dybincka [34]

16 ...........jsjshshsh

8 0
3 years ago
Kenny has $1,400 in the bank. He earns $150 every week at his afterschool job. What is the rate of change for the scenario descr
Vadim26 [7]
<span>The rate of change would be equal to the amount of money that Kenny is earning every week, since there are no expenses that are removing money from his account. In this case, it would be the $150 that he is putting into the account weekly.</span>
6 0
3 years ago
Find the perimeter of a square of sides 10.5cm​
Agata [3.3K]

Answer:

Perimeter = 42 cm

Step-by-step explanation:

A square has all equal sides so you would just add 10.5 + 10.5 + 10.5 + 10.5 to get 42 cm.

3 0
3 years ago
Read 2 more answers
A museum groundskeepers is creating a semicircle statuary garden with a diameter of 30 feet. The fencing cost 9.25 per linear fo
malfutka [58]
It is equal to 277.5 

5 0
3 years ago
If (x, 0) lies on the graph of y = logbx, then x =
Fittoniya [83]
We have the following expression:
 y = logbx
 We clear x of the expression.
 We have then:
 b ^ y = b ^ (logbx)
 Rewriting:
 x = b ^ y
 Substituting we have:
 x = b ^ 0
 x = 1
 Answer:
 
If (x, 0) lies on the graph of y = logbx, then:
 
x = 1
3 0
3 years ago
Read 2 more answers
Other questions:
  • Find the value of the expression
    13·1 answer
  • Graph a linear equation find three points that solve the equation 3x+2y=2
    11·1 answer
  • What is the value of x?<br> O 30<br> O 45<br> O 55<br> O 60
    13·1 answer
  • Please help me with this
    14·1 answer
  • A single story house is to be built on a rectangular lot 70 feet wide by 100 feet deep. The shorter side of the lot is along the
    13·1 answer
  • Which of the following of x makes the rational expressions below undefined
    7·1 answer
  • Fill in the blanks □+0=3/4.also mention the property used.
    14·1 answer
  • If a • b = b, what must the value of a be?
    10·1 answer
  • Figure VWYX is a kite.<br> 3<br> (18x-2)<br> V<br> Y<br> (12x+2)<br> х
    10·1 answer
  • Kyle Eunice has 78 blocks. She stacked it in such a way that the topmost row has one block, the row below it has two blocks, and
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!