Kevin is 4 times old as Daniel and is also 6 years older than Daniel

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Kevin is 4 times old as Daniel and is also 6 years older than Daniel.

Let k be Kevin's age and d be Daniel's age. We have 2 equations:

1. k = 4d
2. k = d + 6

Plug (1) into (2):
4d = d + 6

Subtract d from each side:
4d - d = d - d + 6

Cancel the d terms on the right side and simplify:
3d = 6

Divide each side by 3:
3d/3 = 6/3

Cancel the 3 on the left side:
d = 2

Plug this back into equation (1):
k = 4(2)
k = 8

So Daniel is 2 years old and Kevin is 8 years old