Check my algebra

1. 4-t=3(t-1)-5
a. 3
b. 6
c. no solution (my answer)
d. identity

2. 8x-2(x+1)=2(3x-1)
a. 0
b. 2
c. no solution
d. identity(my answer)

3. 3(c-2)=2(c-6)
a. 2
b. -6(my answer)
c. no solution
d. identity

4. 0.5(m+4)=3(m-1)
a.-2
b. 2(my answer)
c. no solution
d. identity

!

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