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Phổ biến Word Problems >

four times the sum of a number and 15 is greater than or equal to-20

Lời Giải

f o u r t im es t h e s u m o f a n u mb er an d 15 i s g re a t er t han or e q u a l t o - 20

Lời Giải

x \geq - 20

Các bước giải pháp

Represent the number with

x

A.T.Q.:

4 (x + 15) \geq - 20

Giải

x, 4 (x + 15) \geq - 20 : x \geq - 20

x \geq - 20

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