Question

a×32+b×86=536
a×96+b×52=784

Answer 1

Răspuns:

b=4  

a=6

Explicație pas cu pas:

a×32+b×86=536  ⇒a×32=536 -b×86  ⇒a=(536 -b×86)/32=(268-43b)/16  

a×96+b×52=784

⇒96·(268-43b)/16+b×52=784 ⇒6·(268-43b)+b×52=784  ⇒

1608-258b+52b=784  ⇒1608-784=206b  ⇒824=206b  ⇒b=4  ⇒

a=(268-43b)/16= (268-43·4)/16  ⇒a=(268-172)/16=96/16=6  ⇒a=6

Proba: 6·96+52·4=576+208=784

Answer 2

SALUT!

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