SOLUTION: Jeff is 10 years old and his brother is 2 years old. In how many years will be jeff be twice as old as his brother

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Question 1067109: Jeff is 10 years old and his brother is 2 years old. In how many years will be jeff be twice as old as his brother
Answer by math_helper(2461) About Me  (Show Source):
You can put this solution on YOUR website!

x is the unknown number of years:
10 + x = 2(2+ x)
10 + x = 4 + 2x
Can you solve this for x?