Answer:
A) x=32
Explanation:
To work out the value of x you would first need to minus 20° from 180°, this gives you 160°. This is because the total angle in a straight line is 180° and that by subtracting 20 from 180 you are isolating the value of the x's.
The next step is to add up the number of x's in that angle. You can do this by adding the values of 4 and 1, this gives you 5.
The final step is to divide the angle 160 by the total number of x's of 5, this gives you 32°. This si because we had previously isolated the value of the 5x and so by dividing it by 5 so we would work out the value of x.
1) Minus 20 from 180.
2) Add 4 and 1.
3) Divide 160 by 5.
