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3 years ago

Help and please explain

Mathematics

1 answer:

Elden [556K]3 years ago

7 0

-x + 2y = 6 then x = 2y - 6
6y = x +18 then x = 6y - 18
-----------------------substract
0 = -4y + 12
4y = 12
y = 3

-x + 2y = 6
-x + 2(3) = 6
-x = 6 - 6
x = 0

answer: x = 0 (second choice)

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3 years ago

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3 years ago

The sum of two numbers is 14. One number is two less than 3 times the other.

yulyashka [42]

Answer:

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priscillacastillo2

02/10/2019

Mathematics

Middle School

answered

The sum of two numbers is 14 one number is two less than three times the other. find the numbers

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calculista

Genius

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Answer:

The numbers are and

Step-by-step explanation:

Let

x-----> one number

y----> the other number

we know that

------> equation A

-----> equation B

Substitute equation B in equation A and solve for y

Find the value of x

8 0

3 years ago

The solution to the system is (3,4):<br> 3x – 2y = 1<br> 4y = 7+3x<br> Pizz help mee

Marina86 [1]

Answer:

(3,4) is the solution of both equations.

Step-by-step explanation:

The given equations are :

3x – 2y = 1 ....(1)

4y = 7+3x

4y-3x = 7 .....(2)

Put x = 3 and y = 4 in equation (1).

3(3) – 2(4) = 9-8

= 1

So, (3,4) is the solution of the equation (1).

Again put x = 3 and y = 4 in equation (2).

4(4)-3(3) = 16-9

= 7

Hence, (3,4) is the solution of both equations.

4 0

3 years ago