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
dlinn [17]
3 years ago
5

Solve the system of linear equations by substitution.

Mathematics
2 answers:
Vadim26 [7]3 years ago
5 0
Answer:
x= 29/11 or y= 25/11
Step-by-step explanation:
2x - y= 3 ...........equation 1
x + 5y= 14 ............equation 2
Make x the subject of the formula in equation 2
x= 14 - 5y ..............equation 3
Substitute x=14 - 5y in equation 1
2(14- 5y) - y=3
28 - 10y - y=3
Collect like terms
-10y - y=3 - 28
-11y= -25
divide both sides by coefficient of y
-11y/-11 = -25/-11
y= 25/11
Substitute y= 25/11 in equation 3
x=14 - 5(25/11)
x= 14 - 125/11
x= 29/11
SVEN [57.7K]3 years ago
3 0

Answer:

Answer:

x= 29/11 or y= 25/11

Step-by-step explanation:

2x - y= 3 ...........equation 1

x + 5y= 14 ............equation 2

Make x the subject of the formula in equation 2

x= 14 - 5y ..............equation 3

Substitute x=14 - 5y in equation 1

2(14- 5y) - y=3

28 - 10y - y=3

Collect like terms

-10y - y=3 - 28

-11y= -25

divide both sides by coefficient of y

-11y/-11 = -25/-11

y= 25/11

Substitute y= 25/11 in equation 3

x=14 - 5(25/11)

x= 14 - 125/11

x= 29/11

Step-by-step explanation:

You might be interested in
Write 2^60 as an exponent with a base of: 4 , 16<br><br><br> pls explain why you got it, thx!
Ghella [55]
See the photo i provided

3 0
3 years ago
A bridge 48m tall.a scale model of the bridge 37cm long and 12cm tall .how long is the actual bridge .
Roman55 [17]
\frac{48m}{x}=\frac{37cm}{12cm}

37x=48*12

37x=576

x=<span>15.57m long.

The bridge is about 16 meters long.
</span>
6 0
4 years ago
7x + 3 = 10x - 5.4<br><br> will mark brainliest u do not have to show work
Tanya [424]
X=3x-2.4 because if you substract from one side you have to do it to the other
4 0
4 years ago
Read 2 more answers
List the following in order from least to greatest<br><br> -3/5, -0.4, -1, -0.5
nikklg [1K]

-1

- 3/5

- 0.5

-0.4

The least is always the one furthest away from 0

5 0
4 years ago
Plot two points that are 777 units from Point \blueD{D}Dstart color #11accd, D, end color #11accd and also share the same xxx-co
Karolina [17]

Right format of question:

Plot two points that are 7 units from Point D and also share the same x-coordinate as Point D.

Answer:

D' = (-4,-6) and D' = (-4,8)

Step-by-step explanation:

Given

D(x,y) = (-4,1)

Required

Determine a point 7 points from D and in the same x coordinate

Represent this point with D'.

From the requirement of the question, D' has two possible values and these values are:

D' = D(x,y-7) ----> 7 units down and

D' = D(x,y+7) ----> 7 units up

Substitute values for x and y in D' = D(x,y-7) and D' = D(x,y+7)

So, we have:

D' = D(x,y-7)

D' = (-4,1 - 7)

D' = (-4,-6)

D' = D(x,y+7)

D' = (-4,1+7)

D' = (-4,8)

3 0
3 years ago
Other questions:
  • Use the vertical angles theorem to name a pair of congruent angles
    13·1 answer
  • How can you make your answer (41-13i)/(25) into a+bi form?
    12·1 answer
  • Is 3 &lt; 3/2 correct answer for this sum
    8·1 answer
  • What is the graph to the piecewise defined function g(x) = { x+4, -5&lt;=x&lt;=-1
    13·2 answers
  • HELLLPPPPPPPP ASAP WILL GIVE BRAINLIESTTTTTTT ALONG WITH 98 POINTSSSS!!! Make a pie chart.
    5·2 answers
  • Help now now the other 2 are Wednesday and Thursday
    11·1 answer
  • F (t) = 2t - 5 find f(7)
    9·2 answers
  • How can you tell if a formula represents Length, an Area, or Volume? What do you look for in the formula?
    6·1 answer
  • Helppppppppppppp plzzzzz
    13·1 answer
  • Evaluate the expression below for x = 2, y = -3, and z = -1.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!