mulan9757 mulan9757

13-01-2022
Mathematics

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Use substitution to solve the system of equations given by y=2x and 5x+y=7.

Solution = ( , )

Respuesta :

devishri1977 devishri1977

13-01-2022

Answer:

1 , 2

Step-by-step explanation:

y = 2x --------------(I)

5x + y = 7 ------------(II)

Substitute y = 2x in equation (II)

5x + 2x = 7

7x = 7

Divide both sides by 7

x = 7/7

x = 1

Plugin x = 1 in (II)

y = 2*1

y = 2

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