Answer:
n=258
Step-by-step explanation:
1/3n-55=31
+55 to both sides
1/3n=86
divide 1/3 both sides
n=86/1 ÷1/3
we flip fraction when divide and multiply
86/1×3/1 =258
the commutative property was used
8,436,300 cm
The variable is y
Z is a constant.