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شائع Word Problems >

3 times a number minus 12 is equal to 5 times the number plus 15.

الحلّ

3 t im es a n u mb er min u s 12 i s e q u a l t o 5 t im es t h e n u mb er pl u s 15.

الحلّ

The number : - 13 \frac{1}{2}

خطوات الحلّ

Represent the number with

x

A.T.Q.:

3 x - 12 = 5 x + 15

3 x - 12 = 5 x + 15, x

حلّ لـ:

x = - \frac{27}{2}

حوّل من كسر تخيّليّ لعدد مختلط:

\frac{27}{2} = 13 \frac{1}{2}

The number : - 13 \frac{1}{2}

أمثلة شائعة

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