Răspuns
Explicație pas cu pas:
x / y = 3 / 4 ⇒ 4 x = 3 y ⇒ x = 3 y / 4
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2 × 3 y / 4 + 3 y = 24
3 y / 2 + 6 y / 2 = 24
9 y / 2 = 24
9 y = 2 × 24 l : 3
3 y = 2 × 8 ⇒ y = 16 / 3
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x = 3 y / 4 = 3 × 16 / 3 : 4 = 16 : 4
x = 4
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Verific:
x / y = 4 / ( 16 / 3 ) = 4 : ( 16 / 3)= 4 × 3 / 16 = 3 / 4 → raportul
2 × 4 + 3 × 16 / 3 = 8 + 16 = 24
