Jaylin created the following expression: 2/5x −3/10 − x + 1 7/10x − 1/10
Jaylin created an equivalent expression using the following steps:

4/10x + (−1x) +1 7/10x + (−3/10) +(−1/10) 1 1/10x +−2/5
Is his final expression equivalent to the initial expression? Show how you know. If the two expressions are not equivalent, find Jaylin's mistake and correct it.

The boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a) e = 2b - 212 b) b = 2e - 212 c) e = -2b + 212 d) b = -2e + 212

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Find the value of x. give reasons to justify your solutions! h ∈ ig