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
AURORKA [14]
3 years ago
6

Solve the system by the substitution method.

Mathematics
1 answer:
Ghella [55]3 years ago
8 0

Answer:

A) The solution set is (6,-8).

Step-by-step explanation:

3x - y = 26

-3x       - 3x        Subtract 3x from both sides

-y = -3x + 26     Divide both sides by -1

y = 3x - 26

Now plug this into 7x + 8y = -22 to solve for x

7x + 8(3x - 26) = -22        Distribute

7x + 24x - 208 = -22       Combine like terms

31x - 208 = -22

     + 208    + 208            Add 208 to both sides

31x = 186                           Divide both sides by 31

x  = 6

Plug this into y = 3x - 26 to solve for y

y = 3(6) - 26           Multiply

y = 18 - 26              Subtract

y = -8

If this answer is correct, please make me Brainliest!

You might be interested in
you did 150 J of work lifting a 120 N backpack. how much did the backpack weigh in pounds?(hint:there are 4.448 N in one pound)
a_sh-v [17]

If the backpack weighs 120 N, then the equivalent
weight in pounds is about 26.98 .

All that business about lifting and joules of work is
completely irrelevant to this question.

3 0
3 years ago
What is 2/7 + 3/14?In simplest form
timurjin [86]

Answer:

1/2

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
#3. Use substitution to solve the system of equations
ruslelena [56]

I really hope this can help you:)

3 0
3 years ago
Find the greatest common factor: 4ab^2 c^4-2a^2 b^3 c^2+6a^3 b^4 c
Tatiana [17]
Well the GCF is the number that can be used to simplify, or that fits in all of your numbers for example this are all small numbers so 2 should fit in all of them 2 fits in 4 two times 2 fits in 2 one time and 2 fits in 6 three times now lets check our variable, to find the GCF of the variable first chekc if they all have the same if they don't u can't get none of taht variebles out, but if they repeat in all like the a u will take out the smallest amount out, for example the a as one in the degree of 1 the other in to the 2 degree and the last one to teh 3 degree well the smallest degree will be 1 so u will only take 1 a out so now ur GCF looks like 2a... Lets check the other variables, b is used in all of them and the smallest degree is b2 so we will take out 2 b's out so now my GCF looks like 2ab2 now lets check our last variable the, the c has the smallest degree of 1 so we will only take 1 c out
this means our final GCF is "2ab2c"

Hoep this helps
6 0
3 years ago
What are the excluded values of the function? y = 5/6x-72
OLga [1]
Hello,

y=5/(6x-72)
==>6x-72≠0
==>x≠72/6
==>x≠12

7 0
3 years ago
Read 2 more answers
Other questions:
  • Find the value of x and y.
    8·2 answers
  • Josh takes a load of dress shirts to the dry cleaners. The amount he pays for dry cleaning (
    13·2 answers
  • The product of two numbers is 45 and their Arithmetic mean is 7. find the numbers​
    9·2 answers
  • Yesterday morning, the temperature was -11°F. The temperature increased 7°F by noon and then decreased 4°F by nightfall. What wa
    9·1 answer
  • Yolanda starts at the gym and works out a training plan. She wants to cycle a total of 120 miles. If she goes to the gym 3 times
    14·1 answer
  • What is 3/4 of 4/5= ​
    7·1 answer
  • Find the range of values of x for which 3x² + x -2 =0
    9·1 answer
  • What is the percent of increase or decrease to nearest percent?
    7·1 answer
  • PLEASE HELP PLEASEEEEE WILL MAKE BRAINLIEST!!!!!!!
    7·1 answer
  • What is 2/3 - (-2/3)?<br><br> OA) -4/3<br><br> OB) 4/3<br><br> C) 0<br><br> OD) 2/3
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!