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13-02-2020
Mathematics

contestada

Solve the proportion: 5/x+7=3/x+3

Respuesta :

s906621 s906621

13-02-2020

Answer:

x=3

Step-by-step explanation:

cross multiply

5(x+3)=3(x+7)

5x+15=3x+21

5x+15-3x=3x+21-3x

2x+15=21

2x+15-15=21-15

2x=6

x=3

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