Answer:
<h3>
present age of son = 10 </h3><h3>
present age of father = 40</h3>
Step-by-step explanation:
Let, present age of son be 'x'
present age of father be 'y'
y = 4x→ equation ( i )
After five years,
Son's age = x + 5
father's age = y + 5
According to Question,

Put the value of y from equation ( i )

Distribute 3 through the parentheses

Move variable to L.H.S and change it's sign
Similarly, Move constant to R.H.S. and change its sign

Collect like terms

Calculate the difference

Now, put the value of X in equation ( i ) in order to find the present age of father

plug the value of X

Calculate the product

Therefore,
Present age of son = 10
present age of father = 40
Hope this helps..
Best regards!!
Pretty sure this isn’t right but I got -16.67. I’m pretty positive this isn’t the answer but this is what I got ..... sooorrrryyy
Answer:
2nd, 3rd and the last one
4m-5
- 6m-7+2n
____________
-2m+2+2n
When your percent value is something like 75% or 50%.
75% is the same as

50% is the same as