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
hodyreva [135]
3 years ago
10

How u solve this problem 7x-y=6 -7x+y=-6

Mathematics
1 answer:
slava [35]3 years ago
4 0

\underline{+\left\{\begin{array}{ccc}7x-y=6\\-7x+y=-6\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad\qquad0=0\\\\\text{Infinitely many solutions}\\\\\left\{\begin{array}{ccc}x\in\mathbb{R}\\y=7x-6\end{array}\right

You might be interested in
The sum of a number and 9 is -30
GrogVix [38]

-39+9=-30

-39 is your answer.

4 0
3 years ago
What’s the value of x trigonometry question
Softa [21]

Answer:

x=9.2394

Step-by-step explanation:

It's tan we're going to use because we're looking for the opposite and we already have the angle

Therefore, x will be

Tan 57= x/6

1.5399= x/6

x= 6*1.5399

x= 9.2394

You can approximate it to the nearest whole number which will be 9

5 0
2 years ago
Substitution:(x=2y) (y=x-2)
GaryK [48]

Answer:

2=y

4=x

Step-by-step explanation:

x=2y

y=2y-2

add 2 to both sides

2+y=2y

subtract y from both sides

2=1y

2=y

5 0
2 years ago
D + 9 = 35 6th grade
Ghella [55]
26 is the answer, you just subtract 9 from 35 and you get 26
7 0
1 year ago
Read 2 more answers
Can someone please help me and write the answer out​ and use demos​
Elden [556K]

Answer:

I think that's right not 100% but hope it helps? xx

6 0
3 years ago
Other questions:
  • Help?please ?And thank you c:
    9·1 answer
  • Certain tubes manufactured by a company have a mean lifetime of 800 hours and a standard deviation of 60 hours. Find the probabi
    13·1 answer
  • Help me asap if you can.
    5·1 answer
  • Find the Laplace transformation of each of the following functions. In each case, specify the values of s for which the integral
    13·1 answer
  • What is 5 to the power of 6
    5·2 answers
  • I need help with this please. Thanks!
    8·1 answer
  • Four numbers have a mean of 24 Three of the numbers are 22,36 and 9 What is the other number? PLS HELP ME!
    10·1 answer
  • Surface area I need help !!!
    13·1 answer
  • rafeal rides his bike down a hill. for each kilometer that he rides, his altitude changes by -10m. What is rafael's altitude rel
    9·1 answer
  • Graph line y=-2x+5 with no x
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!