2019cwelsh 2019cwelsh

24-07-2017
Mathematics

contestada

Solve the system algebraically.

3x - 2y - 1 = 0
y = 5x + 4

What is the solution?

{(-9/7,-17/7)}

{(9/7,17/7)}

{(9/7,-17/7)}

Respuesta :

freelilboosie12 freelilboosie12

24-07-2017

3x -2(5x + 4) - 1 = 0

3x - 10x -9 = 0

3x - 10x = 9

-7x = 9 x= 9/-7 x=-9/7

y = 5(-9/7) + 4

y= -17/7

The answer is A

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