Solve each equation for the given variable using your best guess and check skills after checking your guess by plugging it in to the equation, modify your guess if needed until you make a true statement and equality.REAL ANSWERS ONLY

Step-by-step explanation:
1)
4n+1=17
4n=16
n=4
2)
17=3x+2
3x=15
x=5
3)
5y-10=40
5y=50
y=10