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
Doss [256]
3 years ago
9

Solving systems of equations how would I solve this problem? AND TYSM for y’alls help!!!!

Mathematics
1 answer:
4vir4ik [10]3 years ago
6 0

Answer:

x = -3,   y = -4

(-3, -4)

Step-by-step explanation:

solve each equation for y (the first equation is already solved for y, so just do the second equation)

-x -y =7

<u>+x      +x</u>

-y = x + 7      eliminate the negative by switching all signs

y = -x - 7

now that both equations equal y, you can set them equal to each other:

-x - 7 = 3x + 5

solve for x

-x - 7 = 3x + 5        move the variable to one side of the equation

<u>+x        +x       </u>

-7 = 4x + 5            move the constant to the other side of the equation

<u>-5          -5</u>

-12 = 4x                 single out x by dividing the whole thing by 4

<u>÷4     ÷4</u>

-3 = x

now substitute -3 for x in one of the original equations (it doesn't matter which equation)

y = 3(-3) +5      solve

y = -9 +5

y = -4

have a wonderful day! :)

You might be interested in
Somebody help me please because i’m stuck
worty [1.4K]

The question is asking for you to plug in each number in the brackets into x and solve for y, or f(x), g(x), etc. I will do no. 19 as an example:

f(x) = -3x + 1

This problem has the domains -2, -1, and 0. First, we'll start with -2:

f(x) = -3(-2) + 1

f(x) = 6 + 1

f(x) = 7

Now -1:

f(x) = -3(-1) + 1

f(x) = 3 + 1

f(x) = 4

Lastly, 0:

f(x) = -3(0) + 1

f(x) = 0 + 1

f(x) = 1

For question 23, we can use the distance formula, which is ratextime. The domain in this case is time (t). You can set up a function like this: d(t) = 60t

8 0
3 years ago
What is the variable and the operation in the algebraic expression math 6/x .
Stella [2.4K]

Answer:

x is the variable

Step-by-step explanation:

6 0
3 years ago
a primary school budgeted for $16200.00 to renovate the school the school raised 25%and applied for the rest of the amount from
frutty [35]

Answer:

Step-by-step explanation:

a primary school budgeted for $16200.00 to renovate the school the school raised 25%and applied for the rest of the amount from a bank how much did the school apply from the bank? ​

a primary school budgeted for $16200.00 to renovate the school the school raised 25%and applied for the rest of the amount from a bank how much did the school apply from the bank? ​

6 0
3 years ago
Need help with this been trying to solve it
alukav5142 [94]
The answer is x^2y^2/5x^2 / 20.
3 0
3 years ago
Read 2 more answers
How many times can henry expect to roll a 4 if he rolls a dice 120 times
olga2289 [7]

Answer: Varies

Step-by-step explanation:

There's a 1 / 6 chance each time.

5 0
3 years ago
Other questions:
  • Help for brianilist please!!!
    10·1 answer
  • Which situation is an example of comparative advantage?
    13·2 answers
  • Which two ratios form a proportion? A) 3 : 4 and 6 : 12 B) 3 : 4 and 9 : 15 C) 3 : 4 and 12 : 18 D) 3 : 4 and 15 : 20
    5·2 answers
  • Rita is making a beaded bracelet. She has a collection of 160 blue beads, 80 gray beads, and 240 pink beads. What is the estimat
    5·1 answer
  • Please help. im terrible at math.
    15·2 answers
  • (-7 - 2n)(-0.6) simplify equation
    14·1 answer
  • Angles D and G are complementary. What statement must always be true about angles D and G?
    6·1 answer
  • Ohh your not a imposter name every task <br> GO GO GO GO GO
    8·2 answers
  • Please help! I’ll also give brainliest! Thank you!
    11·2 answers
  • Find surface area and no the answer is not 60​
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!