Answer:
44
Explanation:
Angles that form a straight line add up to equal 180 degrees
Hence, e + 8 + 3e - 4 = 180
^ ( note that we just created an equation that we can use to
solve for e )
Using the equation created, we then solve for e
e + 8 + 3e - 4 = 180
step 1 combine like terms
3e + e = 4e
8 - 4 = 4
we now have 180 = 4e + 4
step 2 subtract 4 from each side
180 - 4 = 176
4 - 4 cancels out
we now have 176 = 4e
step 3 divide each side by 4
176 / 4 = 44
4e / 4 = e
we're left with e = 44