Samuel is 1/2 as old as his brother. In seven years, he will be 2/3 as old as his brother will be. Find their present ages. Show each step of your work.
s = b/2
s+7 = 2/3(b+7)
now just solve for s and b. You should get Sam is 7 years old now.
s+7 = 2/3(b+7)
now just solve for s and b. You should get Sam is 7 years old now.