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
Oduvanchick [21]
4 years ago
7

Anyone know how to do this one? 2x+7y=-1 4x-3y=-19

Mathematics
1 answer:
nlexa [21]4 years ago
7 0
<span>2x+7y=-1  (1)
4x-3y=-19 (2)

multiply equation (1) by 2
4x + 14y = -2 (1')
</span>4x - 3y =  -19 (2)
---------------------subtract
17y = 17
 y = 1

<span>2x+7y=-1
</span><span>2x+7(1)=-1
</span>2x + 7 = -1
2x = -8
  x = -4

answer
(-4, 1)
You might be interested in
Simplify to create an equivalent expression.<br> 2−4(5p+1)
makvit [3.9K]

Answer:

-2-20p <em>OR</em> -20p-2

Step-by-step explanation:

2-4(5p+1)

Rewrite (the spaces can help me to view the different parts):

2 -4(5p + 1)

Distribute:

2 -20p -4

Combine like terms:

-2-20p

Answer:

-2-20p <em>OR</em> -20p-2

3 0
3 years ago
Read 2 more answers
Fast brainley I give brainliest to correct answers only.
nikitadnepr [17]
The correct answers would be -5.01 , -8
3 0
2 years ago
Read 2 more answers
Let g represent the minimum amount of money Jamie needs to earn to pay his bills. Jamie works part time at an accounting firm. H
inessss [21]

Jamie has earned $80 +75 +145 +250 +80 = $630 so far this week. He needs to earn an additional $875 -630 = $245 to pay his bills.

If Jamie only has one last task, he must earn $245 on that task to pay his bills this week.

7 0
4 years ago
Please help!!! WILL MARK BRAINLIEST
joja [24]

Answer:

1,100 / 8

Step-by-step explanation:

3 0
3 years ago
What is the stationary point of y=9x+6x^2-4x^3.need help asap
Rina8888 [55]
y=9x+6x^2-4x^3\\&#10;y'=9+12x-12x^2\\&#10;9+12x-12x^2=0\\&#10;-12x^2+12x+9=0\\&#10;4x^2-4x-3=0\\&#10;4x^2-4x+1-4=0\\&#10;(2x-1)^2=4\\&#10;2x-1=2 \vee 2x-1=-2\\&#10;2x=3 \vee 2x=-1\\&#10;x=\frac{3}{2} \vee x=-\frac{1}{2}
5 0
3 years ago
Other questions:
  • The picture shows a barn door:
    15·2 answers
  • 2s in 6,228 name the value
    10·1 answer
  • The slope-intercept form of a linear equation is y = mx + b, where x and y are coordinates of an ordered pair, m is the slope of
    10·2 answers
  • PLEASE HELP AND SHOW ALL STEPS ON HOW YOU SOLVED will give brainiest to whoever responds to this question the fastest !!:)
    15·2 answers
  • There are 35 boys in the sixth grade. The number of girls in the sixth grade is 42. What is the ratio of boys to girls ?
    12·2 answers
  • A negative divided by a negative is always positive.<br><br> Is positive or negative
    11·2 answers
  • Freee points bois firkmfmd
    7·2 answers
  • Combine the like terms to create an equivalent expression:<br> \large{-2k-(-5)+1}−2k−(−5)+1
    7·1 answer
  • FASTEST ANSWER WITH STESP FOR PROOF GETS BRAINLIEST
    6·1 answer
  • Design an instructional activity that could help learners recognise that decimal
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!