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Sedbober [7]
3 years ago
5

Solving systems of equations y=-3x+4 and x=2y+6

Mathematics
1 answer:
lisabon 2012 [21]3 years ago
6 0

Answer:

<h3>Therefore x=2 and y=-2</h3>

Step-by-step explanation:

Given system of equations are

   y= -3x+4

⇔3x+y=4 .........(1)

 x= 2y+6

⇔x-2y=6...........(2)

Equation (1) ×2 +equation (2)

6x +2y+x-2y =8+6

⇔7x=14

\Leftrightarrow x= \frac{14}{7}

⇔x = 2

Putting the value of x in equation (1)

3.2+y=4

⇔y+6=4

⇔y=4-6

⇔y=-2

Therefore x=2 and y=-2

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