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Phổ biến Word Problems >

seven times the sum of a number and 20 is at least-28

Lời Giải

se v e n t im es t h e s u m o f a n u mb er an d 20 i s a t l e a s t - 28

Lời Giải

x \geq - 24

Các bước giải pháp

Represent the number with

x

A.T.Q.:

7 (x + 20) \geq - 28

Giải

x, 7 (x + 20) \geq - 28 : x \geq - 24

x \geq - 24

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