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Solve the system using elimination
5x - 7v = 17
3x + 2v = 4


Sagot :

Answer:

v=-1

Step-by-step explanation:

15x - 21v = 51---------(mutiply by 3) (Equaltion-1)

-15x -10v = -20 ------- (mutiply by -5) (Equation-20

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-31v=31 (Cancel 15x and 15x because Equation 1   15x is positive and equation 2      15x is netgative.

v=-1