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
marissa [1.9K]
2 years ago
13

Whats the solution of y = x +2 2x - 5y = 2

Mathematics
1 answer:
aleksandr82 [10.1K]2 years ago
7 0

Answer:

x = -4, y = -2

Step-by-step explanation:

substitute for y

2x - 5(x + 2) = 2

distribute -5

2x -5x - 10 = 2

solve

-3x - 10 = 2

add 10 on both sides

-3x = 12

divide by -3

x = -4

now substitute for x in the equation y = x + 2

y = -4 + 2

y = -2

You might be interested in
Please solve this for me using substitution
Vinvika [58]

<h2> <u>Explanation</u><u>:</u></h2>

\bf \underline{★Given-} \\

\textsf{4x + 5y = 8};

\textsf{5x + 4y = 12}

\bf \underline{★To\: find-} \\

\textsf{the value of x and y in equation?}

\bf \underline{★Solution-} \\

\sf \leadsto 4x + 5y = 8 - - - (i)

\sf \leadsto 5x + 4y = 12 - - - (ii)

By first equation,

\sf \leadsto 4x + 5y = 8

\sf \leadsto 4x = 8 - 5y

\sf \leadsto x = \dfrac{8 - 5y}{4}

\textsf{Now, we can find the original value of Y.}\\

\sf \leadsto 5x + 4y = 12

\sf \leadsto 5 \bigg( \dfrac{8 - 5y}{4} \bigg) + 4y = 12

\sf \leadsto \dfrac{40 - 25y}{4} + 4y = 12

\sf \leadsto \dfrac{40 - 25y + 16y}{4} = 12

\sf \leadsto \dfrac{40 - 9y}{4} = 12

\sf \leadsto 40 - 9y = 12(4)

\sf \leadsto 40 - 9y = 48

\sf \leadsto -9y = 48 - 40

\sf \leadsto -9y =  8

\sf \leadsto y = \dfrac{ -8}{9}

\textsf{Now, we can find the original value of X.}\\

\sf \leadsto 4x + 5y = 8

\sf \leadsto  4x + 5 \bigg( \dfrac{ -8}{9} \bigg) = 8

\sf \leadsto 4x - \dfrac{40}{9} = 8

\sf \leadsto \dfrac{36x - 40}{9} = 8

\sf \leadsto 36x - 40 = 8(9)

\sf \leadsto 36x - 40 = 72

\sf \leadsto 36x = 72 + 40

\sf \leadsto 36x = 112

\sf \leadsto x = \dfrac{112}{36}

\underline{\textsf{Answer-}}\\

Therefore, the values of x and y are -8/9 and 112/36 respectively.

6 0
2 years ago
Can You help me with the Questions On the Screenshot?
Agata [3.3K]

Answer:

The answer would be 129°

Step-by-step explanation:

We know that <em>AZC </em>is a right angle so you would add the 90° ( which is equal to a right angle) to 39° to get your answer :)

6 0
3 years ago
Simplify.
igomit [66]
-4x^2-5x-15+x^2= -3x^2-5x-15 is the answer
7 0
3 years ago
What two numbers multiply to -65 and add to 8
a_sh-v [17]

Answer:

-65

Step-by-step explanation:

i did it and looked it up

7 0
2 years ago
Help me please!!!!!!!!!
Diano4ka-milaya [45]

Answer:

sorry i dont know

Step-by-step explanation:

4 0
2 years ago
Other questions:
  • Suppose two dice are tossed and the numbers on the upper faces are observed. let s denote the set of all possible pairs that can
    6·1 answer
  • Plz help <br> I will greatly appreciate it! ❤️
    10·1 answer
  • Use words to describe the relationship between corresponding numbers of hours and weeks
    7·2 answers
  • 1/3h-4(2/3h-3)=2-3h-6
    8·1 answer
  • Erica makes 6 sandwiches and cuts
    15·1 answer
  • 5. Find the measure of the dotted arc.
    11·2 answers
  • How many ounces of a 19% alcohol solution and a 37% alcohol solution must be combined to obtain 90 ounces of a 24% solution
    11·1 answer
  • A table of values of a linear function is shown below. Find the output when the input is n . Type your answer in the space provi
    5·2 answers
  • The sum of 48 and three times a number is 54 find the number​ help mahhhh
    12·1 answer
  • 4 for 1.40 =1 for $ ? and 3 for $1.20 = 1 for ?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!