Question

Solve for x
a)41
b)17
c)19
d)18

Answer 1

d

Explanation:

3x + 1 and 55 are alternate angles and congruent, thus

3x + 1 = 55 ( subtract 1 from both sides )

3x = 54 ( divide both sides by 3 )

x = 18 → d

Answer 2

18

Explanation:

3x+1=55

(alternate angle theorem)

3x=55-1

3x=54

x=54/3

x=18