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
AlladinOne [14]
3 years ago
14

2x+3y=15 X+y=6 Simultaneously equations

Mathematics
2 answers:
Lerok [7]3 years ago
7 0

Answer:

Step-by-step explanation:

Let's solve your system by substitution.

2x+3y=15;x+y=6

Rewrite equations:

x+y=6;2x+3y=15

Step: Solvex+y=6for x:

x+y=6

x+y+−y=6+−y(Add -y to both sides)

x=−y+6

Step: Substitute−y+6forxin2x+3y=15:

2x+3y=15

2(−y+6)+3y=15

y+12=15(Simplify both sides of the equation)

y+12+−12=15+−12(Add -12 to both sides)

y=3

Step: Substitute3foryinx=−y+6:

x=−y+6

x=−3+6

x=3(Simplify both sides of the equation)

Answer:

x=3 and y=3

nydimaria [60]3 years ago
6 0

Answer:

x = 3, y = 3

Step-by-step explanation:

Given the 2 equations

2x + 3y = 15 → (1)

x + y = 6 → (2)

Multiplying 2) by - 2 and adding to (1) will eliminate x

- 2x - 2y = - 6 → (3)

Add (1) and (3) term by term to eliminate x

y = 3

Substitute y = 3 into either of the 2 equations and solve for x

Substituting into (1)

2x + 3(3) = 15

2x + 9 = 15 ( subtract 9 from both sides )

2x = 6 ( divide both sides by 2 )

x = 3

You might be interested in
What is the common denominator of x+5/x+8 =1+6/x+1
Kobotan [32]
It’s going to be x+8
3 0
2 years ago
Read 2 more answers
will mark BRAINLIEST for correct answer. Find the sum. In your final answer, include your calculations. -3.45 + 5.1
Alexeev081 [22]

Answer:

-3.45+5.1=1.65

Step-by-step explanation:

You could use a calculator (just sayin)

4 0
3 years ago
Read 2 more answers
Board feet is a measurement of lumber volume. A board foot is equal to 144 in3 of wood. About how many board feet is a piece of
Rudiy27
1st multiply 2 x 8 x 144 = 2304 in^3divide 2304 by 144 = 16 board feet

4 0
3 years ago
At a sale on winter clothing,Cody bought two pairs of gloves and four hats for $43.00. Tori bought two pairs of gloves and two h
lara31 [8.8K]
First do 43 - 30= $13 for two hats
so for one hat you do 13 divided by 2 which equals= <u>$6.50</u> for one hat

then you do 30 - 13= $17 for two pairs of gloves
so for one pair of gloves you do 17 divided by 2=<u> $8.50</u> for one pair of gloves
8 0
3 years ago
If c (x) = StartFraction 5 Over x minus 2 EndFraction and d(x) = x + 3, what is the domain of (cd)(x)?
Volgvan

Answer:

The domain of the function (cd)(x) will be all real values of x except x = 2.

Step-by-step explanation:

The two functions are c(x) = \frac{5}{x - 2} and d(x) = x + 3

So, (cd)(x) = (\frac{5}{x - 2})(x + 3) = \frac{5(x + 3)}{x - 2}

Then, for x = 2 the function (cd)(x) will be undefined as zero in the denominator will make the function (cd)(x) undefined.

Therefore, the domain of the function (cd)(x) will be all real values of x except x = 2. (Answer)

8 0
3 years ago
Read 2 more answers
Other questions:
  • Which number is a factor of 100?<br> O 8<br> o 12<br> O 15<br> O 20
    6·2 answers
  • I need help please?!!!
    10·2 answers
  • 4(-3)(15/3)<br><br> 20 points
    10·2 answers
  • Plz solve
    9·2 answers
  • Felix signs up for a cell phone that his parents require him to pay for. His bill is $46.80. What impact will his cell phone hav
    15·2 answers
  • I don't understand help plz​
    13·2 answers
  • Which of the following shows the true solution to the logarithmic equation solved below? log Subscript 2 Baseline (x) = log Subs
    8·2 answers
  • Solve x+14=16<br> What is x?
    10·2 answers
  • Lorne subtracted 6x3 – 2x + 3 from –3x3 + 5x2 + 4x – 7. Use the drop-down menus to identify the steps Lorne used to find the dif
    15·1 answer
  • Please helppp i need to finish it
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!