a) 6x+4y/5x+2y=3/2, atunci x/y=...
b) 5x-4y/2x-y=7/3,2x=y(=-ul este taiat), atunci x/y=...
Chief:
Dau coronita!!!
Vreau rezplvare complete!
*rezolvare
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A) 6x+4y/5x+2y=3/2 <=>2*(6x+4y)=3*(5x+2y) <=> 12x+8y=15x+6y <=>
8y-6y=15x-12x <=> 2y=3x <=> x/y=3/2
B) 5x-4y/2x-y=7/3 <=> 3*(5x-4y)=7*(2x-y) <=> 15x-12y=14x-7y <=>
15x-14x=12y-7y <=> x=5y <=> x/y=1/5
8y-6y=15x-12x <=> 2y=3x <=> x/y=3/2
B) 5x-4y/2x-y=7/3 <=> 3*(5x-4y)=7*(2x-y) <=> 15x-12y=14x-7y <=>
15x-14x=12y-7y <=> x=5y <=> x/y=1/5
nu stiu dar nu pot da coronita
ce fel de coronita ? , un multumesc este destul =)
mersi!!!
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