Dacă x+2y=17si y-3z=4 calculați(3x+6y)+(2y-6z)

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29 Agustus 2025 matematica 5 minute
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Clasă: Education Materie: matematica
Dacă x+2y=17si y-3z=4 calculați(3x+6y)+(2y-6z)
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(173)
x+2y=17
=> 3*(x+2y)=3*17
=> 3x+6y=51

y-3z=4
=>2*(y-3z)=2*4
=>2y-6z=8

=>>>>>
(3x+6y)+(2y-6z)=51+8=59
Răspunsul a fost dat în data 29 Agustus 2025

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