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Evgen [1.6K]
2 years ago
14

Can you please solve it

Mathematics
2 answers:
levacccp [35]2 years ago
8 0
I’m pretty sure that

X= 40 And Y= 60
Nadya [2.5K]2 years ago
3 0

Answer:

...,............

x=40

y=60

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2 years ago
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-2x+4y= 12 3x+7y= 18 last one greatly appreciated
LenaWriter [7]

Value of x is \frac{-6}{13}\\ and y is \frac{36}{13}

Solution set is (\frac{-6}{13}\\, \frac{36}{13})

Step-by-step explanation:

We need to solve the system of equations given.

-2x+4y=12\\3x+7y= 18

Solving

Let:

-2x+4y=12\,\,eq(1)\\3x+7y=18\,\,eq(2)

Multiply eq(1) by 3 and eq(2) by 2 and add both

-6x+12y=36\\6x+14y=36\\-------\\26y=72\\y=\frac{72}{26}\\y=\frac{36}{13}

Putting value of y in equation 1

-2x+4y=12\\-2x+4(\frac{36}{13})=12\\-2x+\frac{144}{13}=12\\-2x=12-\frac{144}{13}\\-2x=\frac{12*13-144}{13}\\-2x=\frac{12}{13}\\x=\frac{-6}{13}\\

So, value of x is \frac{-6}{13}\\ and y is \frac{36}{13}

Solution set is (\frac{-6}{13}\\, \frac{36}{13})

Keywords: System of equations

Learn more about system of equations at:

  • brainly.com/question/9045597
  • brainly.com/question/3739260
  • brainly.com/question/13168205

#learnwithBrainly

7 0
3 years ago
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