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  • 19-05-2021
  • Mathematics
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Solve the system of linear equations by substitution.

x=2y+7

3x−2y=3

Respuesta :

1483231 1483231
  • 21-05-2021

Answer: y--2/9

1 Substitute x=2y+7x=2y+7 into 3x-2y=33x−2y=3.

4y+21=3

4y+21=3

2 Solve for yy in 4y+21=34y+21=3.

y=-\frac{9}{2}

y=−

2

9

​

3 Substitute y=-\frac{9}{2}y=−

2

9

​

 into x=2y+7x=2y+7.

x=-2

x=−2

4 Therefore,

\begin{aligned}&x=-2\\&y=-\frac{9}{2}\end{aligned}

​

 

x=−2

y=−

2

9

​

​

Step-by-step explanation:

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