You use the order of operations. So in you start with multiplication. 8*7= 56. Then that would leave 56-4. 56-4 is 52.
4 because 8 x 3= 23 but 8 x 4= 32 so thre will be some left over.
Find the GCD (or HCF) of numerator and denominator
GCD of 52 and 24 is 4
Divide both the numerator and denominator by the GCD
52 ÷ 4
24 ÷ 4
Reduced fraction: 13/6
X° = 180° - 160°
= 20°
x = 20
Answer:
Yes it is. becaus its even