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Phổ biến Word Problems >

25 subtracted from the product of a number and 7 is less that-39

Lời Giải

25 s u b t r a c t e d f ro m t h e p ro d u c t o f a n u mb er an d 7 i s l ess t ha t - 39

Lời Giải

The number : 9 \frac{1}{7}

Các bước giải pháp

Represent the number with

x

A.T.Q.:

x \cdot 7 - 25 = - (- 39)

Giải

x, x \cdot 7 - 25 = - (- 39) : x = \frac{64}{7}

Chuyển phân số không thực sự thành hỗn số:

\frac{64}{7} = 9 \frac{1}{7}

The number : 9 \frac{1}{7}

Ví dụ phổ biến

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