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HELP ASAP PLEASE PLEASE ASAP 25 points

HELP ASAP PLEASE PLEASE ASAP 25 points-example-1
User Adarsh V C
by
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1 Answer

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60x + 25y = 355 / *(-2)

120x + 30y = 570

_______________

-120x - 50y = -710

120x + 30y = 570

_______________

-20y = -140

y = 7

x = (570 - 30*7)/120 = 360/120 = 3

The cost of one pack of ballpoint pens is 3$ and the cost of one pack of gel pens is 7$.

User Ehsaneha
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