Answer:
n-17
Step-by-step explanation:
Okay so 8 (hector) - 3(Mary) = 5 years apart
So, 16 (hector) - 5 (years apart) = 11 (Mary’s age)
Answer:
113
Step-by-step explanation:
290 - 64 = 226
226 ÷ 2 = 113
Get unknowns on one side and know on other side.
Divide both sides by -2
X= -7