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2x−15y=−10 −4x+5y=−30
Solve the following system for y:


2x15y10 4x5y30 Solve The Following System For Y class=

Sagot :

Answer:

10

Step-by-step explanation:

multiply the first equation by 2 in order to be able to cancel out the -4z and the 2x

4x-30y=-20

-4x+5y=-30

50y+5y = -20+(-30)

55y=-50