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
mezya [45]
3 years ago
7

-7x - 2y = 19 4x + y = -12 Solve the system

Mathematics
1 answer:
nalin [4]3 years ago
4 0

-7x - 2y = 19

4x + y = -12

Set y equal to each other (opposite signs are fine and you could also set x equal instead of y)

-7x - 2y = 19

8x + 2y = -76

Add equations together

x = -52

Plug x value into an equation

4(-52) + y = -12

Solve for y

-208 + y = -12

y = 196

Hope this helps! ;)

You might be interested in
Find the x intercept and y intercept for 6x-2y=18 . provide an explanation and show steps
allochka39001 [22]

Answer:

The slope intercept form would be y = 3x - 9

Step-by-step explanation:

To find this slone in slope intercept form, all we need to do is solve for y.

6x - 2y = 18 ---> Subtract 6x from both sides

-2y = -6x + 18 ----> Divide both sides by -2

y = 3x - 9

3 0
4 years ago
If u=<2,2> then find u•u and determine whether it is a vector or a scalar
Kitty [74]
If ~v = hv1, v2, v3i and ~w = hw1, w2, w3i are vectors and c is a scalar, then (a) c~v = hcv1, cv2, cv3i (b) ~v + ~w = hv1 + w1, v2 + w2, v3 + w3i (c) ~v − ~w = hv1 − w1, v2 − w2, v3 − w3i.
3 0
3 years ago
How do you simplify this
kramer

Answer:

multiply the bottom and the top by route 2 minus route 3

this gives 4 route 2 minus route 18 over minus 1

this gives minus 4 route 2 add route 18

route 18 simplifies to 3 route 2

minus 4 route 2 add 3 route 2 gives minus route 2 as the answer

3 0
3 years ago
PLEASE ANSWER THIS QUESTION
iVinArrow [24]

Answer: im pretty sure its d

Step-by-step explanation:

dhgfldfglijhbfg

7 0
2 years ago
What single decimal multiplier would you use to decrease by 7% followed by a 20% decrease
Vesna [10]

Answer:

x 0.27

Step-by-step explanation:

if they are both decreasing then just add the two percentages together then divide by 100 to give you your decimal answer

6 0
3 years ago
Read 2 more answers
Other questions:
  • Write an exponential function in the form y = a that goes through points ( 0 , 13 ) and ( 2 , 637 )
    15·1 answer
  • Convert 84 degrees to radian measure
    11·2 answers
  • Can someone help me solve this equation <br> 7-1/2x=3
    10·1 answer
  • Pedestrian or bicycle $0.50
    8·1 answer
  • Kelly had 474 in her checking account in june.She earns $138 in july and puts all of it in her account.How much money does kelly
    7·2 answers
  • a bag contains 10 white gold balls and 6 striped golf balls. a golfer wants to add 112 golf balls to the bag. he wants the ratio
    10·1 answer
  • A, B and C are points on a circle.
    12·1 answer
  • Help i don't understand i need the formula and answer thanks
    12·2 answers
  • SOLVE: 6 and 1/12 divided by 4 and2/5​
    12·1 answer
  • What is a factor of thirty six?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!